Understanding the climate change landscape: causes, actors and solutions
Hollywood loves climate change. Blockbusters like Avatar or Elysium portray humanity deserting Earth and looking to the stars for hope. Perhaps a dying Earth makes for a cool plot and great special effects, but the fact that our climate is changing is all too real. We can see the changes around us: Rains either come all at once or not at all; its getting hotter – the last decade was one of the hottest since records began. Indeed, four of the leading climate centres around the world agree that 9 of the 10 hottest years on record occurred in the past decade. The 10th one was 1998.
Closer to home, many of us buy water in Madurai. This past summer, most of us bought water – to drink, to wash our homes and ourselves. Our borewells have gotten deeper and deeper, and to paraphrase a friend – we mine our water now. And even those mines are running dry. This winter, with its plentiful rain, has still not charged the bore in our house. Apartments are coming up all around, and there’s not enough water to go around.
Whatever we may say, humanity’s biggest reaction to climate change so far has been apathy. We’ve known for 100 years about the greenhouse effect – where the carbon dioxide (a gas) in the air makes the planet warmer than it would be otherwise. We’ve known with increasing levels of certainty that human activity (primarily by burning fossil fuels) has been the cause of this warming for 30 years. We’ve pledged to do something about it 20 years ago.
What have we actually done? As a world, we’ve increased the amount of CO2 put into the air from human activity (burning fossil fuels, cement production etc.) from about 25 billion tons in 2000 to about 34 billion tons in 2010 – a 35% increase. To help visualise this, consider: An elephant weights about 3 tons, so we are putting about 11 billion elephants worth of CO2 into the air from our activities each year. About half of the CO2 we put up gets absorbed by our biosphere and our oceans, but the rest keeps increasing the concentration of CO2 in the air – that is, the relative proportion of CO2 in the air compared to other gases. The concentration of CO2, measured by a unit called parts per million (ppm), has increased from 280 ppm 200 years ago to about 400 ppm today. And that has caused the world to heat up.
Economists ascribe this inaction to the tragedy of the commons, a theory that says that individuals acting independently and rationally according to each one's self-interest, behave against the whole group's best interests by depleting some common asset. Psychologists say this is the way our brains are wired – to ignore slow moving, complex (and therefore having parts that are uncertain) threats. And then of course there is the literature. A Google search “Climate Change India” returned over 60,000 articles focussing on the China US announcement recently and fall in rice yields, or the J&K Floods. This is like reading, “Botox and Bollywood” without the context. Without the context, this subject seems elitist and more remote that it is.
What I hope to do over this series is to provide that context. I would like to provide the readers with a overview of the drivers of climate change, the landscape of actors that shape the debate on this subject and most importantly actions on what we can do. And, there’s plenty we can do – from small individual actions each of us can take to larger actions for our governments to adopt – but it all starts with acknowledging there is a problem, understanding it and recognising we can do something about it.
The warming caused by greenhouse gases manifests in multiple ways throughout the world.
A little more than a year earlier, in June 2013, intense rain battered Uttaranchal, causing landslides and exacerbating glacier melt, leaving thousands dead. And there was separate factor at play behind the sudden floods: the rupture of the Chorabari Tal – a lake formed by the retreat of the Chorabari glacier above the Kedarnath town. Experts think the lake probably burst because the heavy rain overwhelmed its boundaries.
The International Panel of Climate Change (IPCC), the leading group of the world’s scientists says that glacier melting (retreat) and intense rainfall events are two leading manifestations of the warming weather. While urban encroachment on the river floodplains definitely made the damage and death toll worse, the intense rainfall events and the glacier retreat were perhaps made worse by global warming.
Climate change is the warming of the world caused by greenhouse gases that trap some of the heat emanating from the world which would have otherwise escaped into space. There are other pieces to this: the ozone layer, the carbon soot, other aerosols, the ice shielding parts of the world, the ocean circulation – all of which we shall look at later.
But for now, let us look at the evidence close to home of the change in our climate. The primary manifestation is temperature.
It has gotten warmer. Chennai has warmed by >1°C in the past 100+ years. Rameswaram, near Madurai, is even worse; it has warmed by 1.5 °C in the past 40 years! But surely 1°C is not a big deal – even the variation between days is more than that. A change of 1°C for a few days, months or even a couple of years may lead to higher cooling costs and slightly worse tempers. A sustained warming of the climate, even by 1 °C, is a big deal and has lasting negative impacts for the world, and especially for hot, dry countries like India.
There are three key impacts of a sustained rise in temperature: ice melting, more humidity in the air and livings things getting out of their comfort zone. We’ll dive into the first now, and leave the others for the next time.
When its warmer than it has been in the past for a long time, ice melts. We have ice on top of mountains, glaciers and mainly, ice near the poles. For example, the Gangotri glacier has receded (or melted) by more than 1 km in the past 100 years. Most of that melting, 850m or so, has come in the past 25 years. Experts say the glacier is receding by 1213 m per year now. That is about ice area equal to 5 football fields every year melting out of Gangotri, and the same (or more) is happening across most of our world’s glaciers.
So, what happens to this enormous amount of water that is now available. It runs through rivers, causing more flooding on the way, into the ocean. We haven’t built the capability to divert some of this additional water runoff into our depleting groundwater aquifers (underwater storage of water), so most of it goes into the ocean or evaporates. This brings us to another oft-mentioned impact of global warming: sea level rise. Researchers using NASA data have estimated that if all of the ice in the glaciers were to melt, the sea level would rise by 17” – a lot but not catastrophic.
But there’s more ice in this world – most of it is held in the gargantuan ice sheets in Greenland and in Antarctica. If the Greenland ice sheet were to melt entirely it would raise the sea level by 7m; if the Antarctic ice sheet were to completely melt, the sea would rise about 60m. So, it is no surprise that the ~40 member alliance of Small Island Developing States (SIDS in UN talk) are amongst the most vociferous voices raised to call for curbing climate change. They stand to lose their homes, their country in the coming century. Next time, we shall go deeper into the second impact: increasing humidity and the consequent changes in rainfall. That strikes far closer to home.
Climate change has multiple manifestations that will impact each region differently
Talking to a group of farmers near Madurai revealed that this is the first winter in 3 years where they have been able to plant rice. Rains have failed for many years, and Raja, a small farmer, has found it hard to make ends meet. A warmer world is different in many ways from the one we have known. Rising CO2 levels causes a rise in the world’s temperature through the greenhouse effect. This temperature increase has many different second round effects (shown in the figure). The effects shape and are shaped by the water cycle of the world – by ocean currents and winds, manifesting differently across the world. Thus, Australia will likely be plagued by drought as will China, California and parts of India. Canada is likely to get warmer and receive more rain. More parts of the US will be plagued by mosquitoes. The eastern seaboard of the US is likely to be increasingly subject to stronger storms. African agriculture is likely to be ravaged by numerous threats. In some models, summer temperatures in the Mediterranean are expected to rise by 9C by the end of this century. Bangladesh, with its low lying deltas , will face the brunt of sea level rise. Temperature increases in the mountain tops of Himachal are projected to damage its apple crop.
These are then some of the “Avatars” or manifestations of a changing climate:
One major “Avatar” of a warmer world is a change in the rainfall pattern. Warmer air holds more humidity which translates to stormier weather. We are projected to get more rainfall, not well distributed either temporally or spatially, but in storms and intense rainfall events and with wet areas getting wetter and dry areas getting drier.
Our infrastructure cannot handle intense rainfall: our storm drains are built with a certain maximum rainfall intensity in mind – more rain at once would overwhelm the system (even if it were properly maintained, which many are not) and result in flooding of city roads – an All too familiar sight in Indian cities. Too much rain at once is also not good for charging our groundwater as more of it will either evaporate or flow into rivers rather than percolate into the ground.
Let us revisit the floods that ravaged Jammu and Kashmir this September. While the IMD map shows historical rainfall in a smooth green line across the entire monsoon, the actual rainfall in 2014 is episodic. The September rainfall peaks, while somewhat bridging the cumulative rainfall deficit, lead to the J&K floods.
Episodic rainfall is not good for agriculture. Indeed, one of climate change’s most tragic impacts for India is the triple whammy on agriculture: rising temperatures will cause falling yields, water shortages make the yields worse and lastly, when water does come, much of it likely to come in stormy intense rainfall that would damage crops. Some models claim that rising CO2 levels will cause plant productivity to rise. True – if the rise happened in isolation. But the rise doesn’t happen in isolation – it happens with rising temperatures, falling water availability, increasing short term pollutants like black soot, changing pest attack patterns with a strong dash of extreme events thrown in. The IPCC projects steep falls in the yield of wheat and many other crops in India post 2030. That’s bad news for a poor country with a billion mouths to feed.
Today we are acting with impunity, leaning on the world and tilting it, thinking it will rebalance. We provide free power and water thinking we are doing favours for the farmers, when indeed they are the ones most likely to be hit in the warmer planet that is coming. We build on river flood plains and over water bodies disrupting the natural water flow and paying a price when floods do come. What we need now is granular data– rain/ temperature data at the village level – that will help our scientists predict and understand the future and bring out solutions that will work. Battling climate change is both a high level war involving carbon taxes and UN summit agreements, as well as a battle fought in the trenches encompassing farmer retraining, LED adoption, and changes in what we eat. For Raja and his friends, adapting to climate change may involve a different way of farming, using less water and more resilient seeds. It is striking that what they really wanted was awareness and training.
To judge if changes initiated by the government or the changes we make in our consumption pattern is worthwhile, we have to answer the following question: How does climate change affect or likely to affect you?
First, let's start with you. Who are you? The 2011 Indian Census reveals that (if you are Indian) you are likely to be young (less than 40) and of modest means. As a reader of this paper, you are likely to be urban and well educated. So let us consider climate change impact from two perspectives: from that of a middle class urban household and a youth from the farming community.
The household depends on erratic water supply from the Corporation. The water comes in the pipeline only on alternate days and the quality of the water is not consistent either. The bore in the apartment complex is running dry and buying water is shrinking savings. The power cuts have started again because the windmill generation has stopped. Traffic-congested roads means the breadwinners spend more hours on the commute. The children are in school and getting into good colleges is very hard, making the parents spend extra on tuitions. The son suffers from asthma and inhalers are a constant fixture in the household. Food prices are still going up but not as much as they used to.
Fast forward 20 years. We do little to change our ways. Leading climate scientists then think the urban family's life is about to get a lot harder. Water will be the hardest issue - there will be nowhere close to enough of it. What is free (or nearly so) today will become scarce and, therefore, expensive. Nights will become much hotter, which will increase cooling costs. Food prices are likely to shoot up, since scientists are quite certain that crop yields will fall fast in most scenarios. More people with asthma and inhalers will become a way of life. Life will be harder in other ways. More and more families will come into cities - driven by desperation, failing crops and hope. Crime rate will be high and housing expensive. There will be less money to pay for tuitions, good schools and fun outings. This is significant as competition to get ahead is fierce.
Even then this life may appear good when compared to the boy from the farms. Today, he leads a hard life, even after getting so many things for "free": free water, free cycle, free power, minimum prices for crops, free education. Wow! That's not a bad life. Look a little closer - the free education is worth what he pays for it. Pratham's recent report on education tells us that nearly one-third of Class II children studying in rural government schools cannot recognise letters! Still, he tries hard and his family sacrifices so that he can leave farming behind and start out in the city.
Fast forward 20 years again. His family's crops are failing - the rain is erratic and the groundwater has dried up. It's so hot now that the plants wilt sooner than they ever used to. The insect cycle (pollination etc.) that was so closely coordinated with the crops earlier is now out of sync, playing havoc with the yields. Without new seed varieties, increasing fertiliser has not really increased the yield, but taken up extra cost. His dream of attending college is dead. His family no longer has the money to send him.
Predicting the future climate is a difficult job. As a species, we are still in learning process, learning about the inter-linkages, feedbacks and even about parts of the planet that are beginning to affect the climate. But how much we know so far? Every four years, with increasing stridency and certainty, hundreds of the world's leading scientists remind us how we are changing the climate through our actions and the impacts of that change are going to hit hardest on those of us living in hot dry climates and most of all on the poor.
Given this, should we act?
Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The next article in this series will appear on March 6. Feedback and questions may be e-mailed to climaction2015@gmail.com
Mridula Ramesh is the Executive Director of Sundaram Textiles. She is also a student and teacher of global warming.
This photo provided by 6abc Action News shows the Inlet section of Atlantic City, N.J., as Hurricane Sandy makes it approach. (AP Photo/6abc Action News, Dann Cuellar)
Different countries are differently impacted, muddling motives to change Last time we considered climate change impacts from an Indian perspective and why it would make sense for us to act. But climate change is a global phenomenon caused by all of us in differing extents and affecting all of us in different ways
This is an important point. Understanding the differentiated impacts of climate change will help us understand why so little has been done so far. Impact here is defined by the IPCC, a group of 800+ of the world's leading climate scientists, as the intersection of risk, vulnerability and adaptation. An example may help: a very hot day, well above 100°F, is manageable if one can stay indoors in cold air conditioning. However, if one has an arduous manual job performed outdoors, a series of such days could prove fatal. The former is low impact while the latter is high impact.
The prisoner's dilemma provides a great framework to understand (in)action on climate change. This is a game in game theory that shows why two rational individuals might not cooperate, even if it maybe in their best interests to do so. The rules are as follows: Two prisoners are in two cells unable to talk together. They know this: if both keep silent, they both get off. If prisoner A squeals, but prisoner B is silent, prisoner A gets off and gets perks, while prisoner B goes to jail for 5 years and vice versa. If both squeal, they both go to jail for 2 years. Long story short, they both squeal, most of the time.
A woman covers her mouth during a sandstorm that hit in Lanzhou in northwest China's Gansu province. China's capital woke up to orange-tinted skies Saturday as the strongest sandstorm so far this year hit the country's north, delaying some flights at Beijing's international airport and prompting South Korean weather officials to issue a dust warning for Seoul. (AP Photo) ** CHINA OUT **
Climate change is a prisoner’s dilemma with horns and on steroids. If we, the world, cooperate, or arrest climate change, we all get a wonderful place to live. If we don’t, for some of us, our way of life ends. But wait, there’s more. If we don’t cooperate, we all don’t go to the same kind of prison - some of us stay out, some go to hell, some to a low security prison. Whether or not we will cooperate will depend (a) on how much it costs us, and (b) how much we gain by cooperating. The first step to solving this dilemma is to understand the payoffs (impacts) of key players in cooperating.
In Climate Change, the key players together constitute more than 50% of the world GDP, population and CO2 emissions. They are the US, China, the European Union and India.
Let’s start with the US. The US is geographically and politically very diverse. California and the US Southwest are and will be hit hardest by the changing climate. Much like India, they will become drier, so households and agriculture will be sorely beset. The rich and famous in Hollywood already spend crores of rupees a year in buying water. Forest fires, encouraged by increasing drought and heat, burned 9.2 million acres of forest in 2012 (roughly the size of Kerala) with rising risks to health and property. So it’s not surprising that Arnold Schwarzenegger, erstwhile Terminator and current governor of California, is a committed climate change fighter.
Moving to the East Coast: Hurricane Sandy that hit the US in 2012 left behind $60 billion in property damage and 150 deaths in its wake. The Northeast will be pounded by heavy rainfall and powerful storms as the climate warms leaving expensive infrastructure and the urban poor vulnerable to flooding and its aftermath.
The rest of the US will be affected by climate change but manageably so and many parts like the Midwest might even benefit with longer crop growing cycles and nicer weather. The Great plains of America is home to oil companies and oil-derived wealth and the fracking (getting oil & gas from shale rock) revolution - they will not want to give that up easily to lessen climate change especially as they are not impacted too much.
While President Obama and politicians from the badly impacted regions may push for climate action, the political process in the US prevents them from delivering substantive action.
China is a powerful country with 1.3 billion mouths to feed and a third of its workforce in agriculture. Dust storms now bombard the capital, frequent droughts have begun to plague agriculture, floods and storms threaten the prosperous south-eastern cities and the air is thick with haze. Heat waves threaten the urban Chinese and incidence of dengue is set to increase. Many of China’s glaciers are predicted to disappear by 2050 further impacting agriculture, especially in the dryer north. China has woken up to the dangers of climate change and in typical Chinese fashion, has started to act. From next to nothing, China has the largest installed wind power capacity today and is targeting 70 GW of solar installations by 2017. It is the world’s largest solar panel manufacturer. China has been building another great wall - one made of trees to prevent sandstorms over Beijing.
Next time, we will look at the European Union and revisit India and see where that leaves us in solving the prisoner’s dilemma, and the climate problem.
Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The next article in this series will appear on March 20. Feedback and questions may be e-mailed to climaction2015@gmail.com
Mridula Ramesh is the Executive Director of Sundaram Textiles. She is also a student and teacher of global warming.
European lead is a positive step but Indian consequences still dire
Last time we looked at the differing impacts that climate change had on various countries and framed the discussion through the lens of a prisoner’s dilemma: two prisoners in separate cells; if they cooperate they’re free if they don’t they both go to jail.
This time we ask: “What do the prisoners do in this dilemma, and where does that leave the world?” The US “prisoner” has muddled incentives - parts of him lose heavily in the changing climate, parts are unaffected while some powerful parts of him stand to lose if status quo is altered. The payoff of the Chinese “prisoner” is uniformly negative if status quo persists - so he would prefer to see cooperative action on climate change. What of the two other “prisoners” - the EU and India?
European countries look like the poster children of action on climate change. Emissions of greenhouse gases (the causative agents of global warming) are down since 1990 and; a further binding 40% reduction in greenhouse gases (from 1990 levels) is targeted by 2030.
Europe achieved its targets for three reasons: the 2009 financial crisis and the 2011 Euro crisis caused the European economy to falter (and lowered the amount of energy it used), the outsourcing of production of a substantial fraction of the “stuff” consumed by European customers (and the emissions associated with producing the stuff) and the pursuit of renewable power. How they perform in future will depend on what their “payoff” is.
Air pollution (some of which exacerbates global warming) causes half a million deaths in Europe annually; Glacier melting and the flooding of rivers and rising sea levels threaten low lying countries like the Netherlands (where up to an eighth of the country lies below sea level). Intense water scarcity and increasing summer temperatures hurt agriculture and tourism income of Southern Europe. Many northern European countries benefit with lower heating costs, higher agricultural productivity and longer tourist seasons. There are winners and losers within Europe, but because Europe is developed, the losers can manage the changes.
Given the manageable negative payoff from climate change, why is Europe acting? Part of it maybe a desire to gain prominence in the world stage, a stage increasingly being dominated by the US and China. They can get leadership credibility only if they lead by example. Second, a higher sense of social equity in European countries may be driving action through a social justice angle. Third, European companies stand to gain from action on climate change. Some of the world’s leading wind energy manufacturers and LED lighting companies are European. 92% of responding Euro 300 companies report that climate regulation presents an opportunity to their business.
Now, India.
India is and will be badly affected by the changing climate. We are a hot, dry and poor country - thus vulnerable to the heating and drying aspects of climate change (think floods, droughts, lost livelihoods and increased infection) and with limited financial space to adapt. We have abundant reserves of relatively inexpensive coal. We have a young country with a large poor and middle class hungry for iphones and commercial dreams. They will want the government to spend on education and jobs, not on carbon sequestration. We cannot take on binding unilateral targets of emission without ambitious binding emission reduction commitments and financial assistance from developed countries. Why? India cannot afford to cut its emissions aggressively - but even if it did, this would be futile if the rest of the world continued to emit for then, the world would still get warmer.
Taken together, India’s payoffs if status quo persists are very negative unless everyone cooperates; China’s is negative; US’s is very mixed; Europe, though the status quo payoff is not very negative, by credibly signalling that they will always cooperate, has made it more likely for others to cooperate . Returning to the prisoner’s dilemma, if prisoner A knew with certainty that prisoner B would always keep silent (say he had a secret camera in prisoner B’s room), it is extremely likely he would keep quiet, thus enabling both of them to be set free. Consider this: Europe made its 40% emissions reduction public announcement in October 2014. The China and US joint announcement to curb greenhouse gas emissions came a month later, in November, after eluding the world for so long.
The depressing truth is that the differentiated “payoffs” from climate change makes substantive action unlikely in a consensus based forum like the UN. We could try for better success by framing the issue on moral grounds like slavery and shame countries into complying by invoking reputational consequences. But that’s a long shot.
Given this, how should India act?
Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The next article in this series will appear on April 3. Feedback and questions may be e-mailed to climaction2015@gmail.com
(Mridula Ramesh is the Executive Director of Sundaram Textiles. She is also a student and teacher of global warming.)
Adapting may be the best bet
In the last two articles we saw that given the differing impacts of climate change on different countries, the depressing reality might be that insufficient action against that change is the most likely outcome. Given this, how should India act?
We can think of action on climate change along two broad categories: Mitigation and Adaptation. The thinking behind mitigation is that let us lower the factors that contribute to climate change. A little bit of science and an example may help clarify this.
“Global warming” or the greenhouse effect is caused primarily by certain gases in our air which act like a semi transparent blanket (hence the name greenhouse gases): they allow the sun’s light and heat to reach the Earth and heat it but they make it harder for the Earth to release its own heat into space. The chief amongst these gases in heat-trapping potential is carbon dioxide (CO2). This is for two reasons: compared with other “greenhouse” gases, CO2 is the most abundant (I’m leaving aside water vapour for now), and secondly, CO2 tends to hang around for a really long time. Most of the released CO2 is removed within a year by plants by photosynthesis or by ocean absorption, but a fraction stays for over a 1000 years. Much of the CO2 level increase is driven by the burning of fossil fuels - coal, petrol, diesel, wood. So, to “mitigate” climate change, we should consume less fossil fuels - burn less coal, improve the fuel average in our car, take the bus, conserve forests etc.
This is pretty straightforward. Why don’t we do it then? Mainly because a strong economy pushes us in the opposite direction. Think of an economy doing well: most persons who want a job, have a job; many have options; people are going to the movies, eating out, buying stuff; travelling. There’s joy in the air: festivals are celebrated exuberantly. Those who might have bought a Hyundai i10, go for an i20; those who would have taken the bus, aspire for a car. Now look at what drives that: factories churning out more stuff, cars being driven more, more flights - all of this uses more power. Where does that power come from? From petrol or diesel for vehicles and from the grid, a grid that is supplied 60% by coal. Burning a kg of coal releases 2.86 kgs of CO2. So, a booming economy, most of the time, means more CO2. And India wants this. Because a booming economy is the best way to lift our poor out of poverty. Much like China did. Another reason why India is averse to mitigation is because India is reliant on coal, the most “emittive” of the fossil fuels. Generating power from solar could be three times more expensive than from coal; India cannot afford that. Think of another way to mitigate: build capital-intensive city transportation - like the Delhi metro. Convenient, clean and fast. On a per passenger km basis, the light rail option is a clear winner over cars or buses in terms of CO2 emissions and convenience. So why is this not happening faster in India? Building a km of metro takes about Rs. 300 crore. Building a metro system costs between Rs.30,000 to 90,000 crores to be useful. Investments such as these clamor with pay commission recommendations and subsidies for Finance Minister’s attention, often getting much less than needed. So mitigating on a macro scale is a tough ask.
What of adaptation? The philosophy behind this is that the world is changing, and is likely to keep changing. India, by virtue of being hot and dry, is likely to be subject to the worst effects of a warming climate and by being poor, has less “give” to deal with it. So given that inaction or insufficient action is the norm in climate change politics, let us start adapting to a warmer and drier climate. An example of this might be investing in genetically modifying our rice crop to withstand higher heat and/or lower water availability. Another example is to eat less meat, as meat tends to take more water per gram protein than plant-based protein like soya.
Let us consider the context: action can be macro, decided by countries. Action can be micro - decided by company and citizens like you and me. Let me pass on the action plan for the country. This is perhaps not the forum for it. Let me instead focus on the action plan for us. On a personal level. What can we do? Plenty. Let’s start with what we eat.
Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The next article in this series will appear on April 17. Feedback and questions may be e-mailed to climaction2015@gmail.com
By growing mangoes, oranges and jojoba in the desert, the West Asian country conveys the message of hope under changing climatic conditions
At the back of everyone’s minds, the worst fear regarding changing climate is how can we ever cope with a 4 degree Celsius temperature increase and increased drought, especially in regions like Tamil Nadu or Rajasthan? It’s not possible. I have heard scientists mention it off the record. I have felt it. And so, this thought, this fear leaves it sticky, hopeless residue on the actions we take or hope to take.
But in the past week, I visited a land that has not only overcome its lack of water, it has thrived, even to the astonishing reality today of exporting its water. It appears magical – especially since the country is in the middle of biblical realms – but it is not.
Seeing is believing and I saw Oranges and Jojoba plants growing straight out of desert sand. I was told earlier that cucumbers and mangoes grew here. Plants grow with higher yield and make commercial sense while factoring the full price of water. There are many lessons in this for us. Let me distil out the main ones. It is a parable of water.
When modern-day Israel came into being in 1948, it was a dry land. Water was to be found either in the northwest – in the Sea of Galilee or deep underground. About half the land was and is a desert. The mighty Negev in the south of Israel needed to provide food if the new nation was to offer a home to all the people flowing into it. So a grand plan was drawn up to divert the waters from the North East to the South. While that was a grand feat of engineering, there was an even remarkable concept supporting it. The Water Law passed in 1959 established water as a common property and removed the right to the groundwater found under the land from the person owning the land. In fact, even the sewage of a house in Israel does not belong to the household, it belongs to the state. Good riddance to bad rubbish, you might say. But in Israel, sewage, as we shall see, holds the key to making the desert hospitable.
Water is measured carefully in Israel and priced – everyone pays. While water was (and is) offered at a discount to the farmer, it was still priced. This has led to innovation to lower costs and improve profits. An early innovation was the invention of modern-day drip irrigation in the mid-1960s by Simcha Blass that allowed water to be directed to the roots of the plant thus minimising the loss to evaporation. He, in a joint venture with kibbutz Hatzerim (an agricultural settlement), founded a company called Netafim in 1965 that commercialised the technology. Drip irrigation has advanced considerably – both geographically and technologically. Often, all the nutrition and fertilization that a plant needs comes through the drip tubes and the soil has merely become an anchor to hold the roots of the plants. Indeed, I saw a company that places sensors on the plant to understand when the plant is “thirsty” and uses that information to turn on the drip!
Today, you can see the drip irrigation tubes everywhere in Israel: in the midst of small vegetation patches in the front of apartment complexes, alongside the orange trees in the farms, hidden 30 cm under the ground of the sandy desert watering the roots of the thirsty shrubs. A small price for water along with a carefully cultivated water-consciousness through repeated, consistent messaging has made the tubes affordable and desirable.
Add this to another innovation: the use of treated sewage to irrigate crops. Israel reuses 85% of its treated sewage or effluents – far ahead of any other country. This allows it to become “weather-independent” for its water needs. This journey of using reclaimed sewage water for agriculture also started in the 1960s and today has grown to be major source of usable water for the country.
You might think so what? The National Crime Record Bureau’s Accidental Deaths and Suicides Report says 11,744 farmers’ suicides occurred across India in 2013 with Maharashtra, a cotton growing state, accounting for 3,146. Studies on what drives farmers to commit suicide throws up water and irrigation issues as one of the main reasons. So when a water-stressed desert country can grow cotton at triple the yield of India, it warrants, at the very least, examination and nuanced emulation.
(Climaction is a fortnightly column published in MetroPlus Weekend on alternate Fridays. The views expressed in the article are those of the author. The next article in this series will appear on November 13.
Feedback and questions may be e-mailed to climaction2015@gmail.com)
(Mridula Ramesh is the Executive Director of Sundaram Textiles. She is also a student and teacher of global warming)
Why the Chennai floods happened?
For a climate change column, writing about anything other than Chennai seems out of place. But so much has been already written about Chennai. Most of the readers will understand that global warming perhaps played a role in the unusual rains. This was compounded by an unmanaged urban sprawl that appropriated land from water bodies and sapped water channels of their main purpose: to carry water. A google search for #Chennairains yielded 25, 00,000 hits, while #Chennairainshelp yields a smaller 1, 24,000. Everyone knows someone in their first circle who is coordinating relief efforts. Is there more to add? Perhaps.
First, to provide context, let us ask: Was this caused by global warming?
One of the less endearing traits of global warming is the multiplicity of fingerprints it leaves on various ecosystems of the world. What were the ones this year?
Officials from NOAA and NASA are 99% sure that 2015 is the hottest year on record. Officials from the IMD are more certain: it is the hottest year, with temperatures in November being 1.25°C above normal.
The El Nino effect this year, driven by warmer temperatures in the eastern Pacific Ocean, held by many to be directly responsible for the Chennai rains, is one of the strongest on record.
Unseasonal rain in early 2015 led to record crop losses in Rabi crop in India, estimated by CSE to be in the vicinity of Rs. 20,000 crore. This is the third year running when unseasonal rain during harvest time has played havoc with agricultural yield of the Rabi crop. Higher temperatures in November and December of this year are causing delays in sowing wheat this year.
Nearly 2,500 people died in the heat wave of late May, mainly in Andhra Pradesh and Telangana, where temperatures reached 48°C.
We have had two weak monsoons in a row.
This is the textbook definition of how the impacts of global warming could play out in India: heat waves, changes in rainfall patterns and a probable increase in rainfall intensity.
Scientists will study models and will argue on whether climate change directly caused this particular tragedy or not. But they will all agree on one thing: with the temperatures rising, such events will definitely become more common in the days to come.
The next question could be: Could we have done better?
Well, we’ve reduced the number of water bodies in Chennai from 650 to less than 30. We have caused the decline of marshland area by 90%. We have tolerated the dumping of debris into the rivers and encroachments of flood plains. We know garbage piles up everywhere blocking sewers. Even if our eyes were blind, and we couldn’t smell, the rise in Dengue would serve to warn us.
Should we feign shock? There are so many articles about how humanity has risen while Chennai has sunk. There are hundreds of volunteers and service staff helping, helping: one friend put it as an 18 hour shift – every day – many of whom are placing their personal safety at risk. They are heroes. However, will the milk of human kindness run thinner when repeated shocks makes the novelty of being a hero wear off?
While it is convenient and comforting to blame the democratically elected politicians for the urban mess, this really was a team effort. From the papers that carried full page advertisement of glossy apartments built on marshland, to the millions of dollars of investment that poured in to finance the construction, to the thousands of jobs that the construction offered – either directly or indirectly to the thousands of people who happily bought the apartments, there were many players in the game.
The analogy that springs to mind is this: a man leads a stressful life, travels a lot and eats out a lot. He gives up exercising, sits on the couch and snacks away. He wears away his coping mechanisms a little at a time. When his wife asks him to eat healthier or exercise, he snaps “Leave me alone. Can’t you see I’m really busy? Be more understanding. Then he has a heart attack, followed by another one shortly thereafter.
Yes, it is hard for our society to be less tolerant of lapses in the provision of services. Many of us have so little skin-in-the-game: the rich live in isolated cocoons. Even in the floods, the generators ran providing electricity. The poor often live in a parallel economy. Many of the poor don’t pay for the government services (often ending up paying higher to private parties), so don’t believe they can demand any quality, until of course, they lose everything in an incident such as this. The middle class, impotently sandwiched in between, seethe. We are even proud of our “Jugaad” way of coping, little realising that this chronic neglect will only result in tragedy.
But it is time to be less tolerant of this tendency in ourselves: to look away, to accept, to cope with a quick fix– that is the way to our salvation.
(Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The views expressed in the articles are those of the author.)
The next article in this series will appear on December 25, 2015.
Feedback and questions may be e-mailed to climaction2015@gmail.com
(Mridula Ramesh is the Executive Director of Sundaram Textiles. She is also a student and teacher of global warming.)
With the series coming to conclusion, we need to consider the important choices before us -- what climate change is, what it will mean for India and importantly, what we can d
Climate change is much more than One degree C increase in temperature. A consistently warmer temperature fundamentally alters the way air holds moisture: warmer air can hold more vapour resulting in more intense rain alternating with multiple droughts. When coupled with unwise urban planning, this intense rainfall results in floods. Plants cannot adapt to such different patterns of rainfall. Agricultural yields fall steeply if we don’t adapt and it will and has caused extinctions of many species. Seas will rise and there will be salt water intrusion into ground water in coastal zones. There are and will increasingly will be frequent, deadly heat waves, with each new year setting a record in soaring temperatures.
It’s virtually certain that humans have caused this warming through the greenhouse gases from burning fossil fuels like coal or diesel and increasing our livestock populations. Carbon dioxide tends to be long lived which makes it important to consider cumulative emissions when assigning blame and enlisting action.
Most importantly, this is not going to be an easy problem to solve. Why? Because each country is affected differently by the warming climate: warm, poor countries suffer both because of their already hot climates and their inability to cope, while cooler, wealthier climates suffer relatively less and importantly have the means to cope. There were celebrations about the Paris accord saying it was the tilting point of climate change action, but little has happened since then with richer nations not agreeing to legally binding cuts in emissions.
This means curbing climate change will need a “miracle” as Bill Gates recently called it.
With this in mind, and given India’s relatively small share in emissions and our current developing state, India should focus on adapting to a warmer world and taking “low-hanging” mitigating actions or those with substantial non-climate benefits. Here, it is important to bring up the oft-ignored concepts of “Attention” and “Execution”. As a country, with so many “urgent” to dos, the availability of both talented manpower and capable institutions are serious bottlenecks. This means, it is better for India to focus on a small set of actions and execute well.
There is another matter to consider. Climate Change is a classic example of what economists call the tragedy of the commons. This is a theory that says that individuals acting independently and rationally according to each one's self-interest, behave against the whole group's best interests by depleting some common asset. India is particularly vulnerable to this. Farmers pump out water with impunity with no care of when that water might run out. FMCG companies make sachets for rural markets with no care of the disposal costs of those sachets. We export cubic kilometres of our ground water with the beef we export without receiving compensation for it.
One reason could be that we have so very little skin in the game. As Indians, we have one of the lowest tax bases in the country or tax share of GDP. The poor fall under the bracket, many others evade. We have one of the lowest rates of volunteering or giving charity. We don’t have a mandatory army service. We don’t have a jury service. It’s not mandatory to vote (details on climaction.net).
In several measurable dimensions, we are poor citizens. This is so clearly manifested by the common site of a shopkeeper sweeping the front of his shop clean while pushing the garbage onto the common road.
Because so many of the actions needed to adapt to a warmer world need collective action – not dumping garbage into waterways, not building over water bodies, pumping ground water judiciously, executing a rapid bus transit system.
Tagore said it beautifully when he wrote “Where the world has not been broken into fragments by narrow domestic walls”.
This is a personal, independent decision each of us has to make. Is each of us an island? Or are we fellow citizens of a country? The answer to this question determines your actions. And the collective weight of these actions determines the fate of our country.
(Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The views expressed in the articles are those of the author.)
The last article in this series will appear on March 18, 2016.
Feedback and questions may be e-mailed to climaction2015@gmail.com
(Mridula Ramesh is the Executive Director of Sundaram Textiles. She is also a student and teacher of global warming.)
Our future is our choice
It’s 2050: Sunita wakes up in her new two-bedroom unit in Chennai. The sensors have slightly reduced the temperature in the room to let her body know it’s time to get up. Using the toilet is an act of active citizenship now – the sewage from her flat is treated and used to grow gardens that cool the building and provide food to its occupants. Her breakfast has locally grown veggies and a yeast-stake – a new fad that has yeast strains mimicking the taste and nutrition of meat. So few eat meat now – there is no need. She walks down to the bus station in the pathway that was recently modified. It’s covered to protect from the heat, but the cover is made of solar panels that help power the bus station that won the city’s Form-Function award last year. It has ceiling covered with new flexible, colourful solar panels mimicking a fish; mood music, performance spaces – it really perks one up! The bus arrives – Sunita settles into her seat: she can customise the seat colour, check the news, get a massage. If she were in a more social mood, she could head upstairs to the coffee club on the upper deck.
The news today is all about the anniversary of the Climate Adapt Bill passed in 2025 – the one that completely revamped how everyone lived, with fully priced water, heat adaptation, smart city design and a complete overhaul of the education system. Within five years, the effects were felt – there was weather-proofed farming, for starters. The smart city program overhauled the infrastructure and the revamped education system allowed rural youth to play a big role. The city kept changing and improving. This month it was the platform. Last year it was the bus station. It’s hotter now, true and some parts of old Chennai, especially near the beach are not liveable. But most of the power now is drawn from Carbon-free sources, so the CO2 levels in the air actually has been falling for the past 5 years. By recognizing the threat and adapting, there is not just hope but renewed energy that makes for an exciting new world.
It's 2050: Prakash joins a long line outside the ration shop. The smart ones begin to stand by 8 pm, when the heat is a touch lower. They removed all shelter outside the shop to discourage people from coming, but the people still came and fainted when it got too hot. The crops have failed…again. Water could never be priced they said, so people used it carelessly until it ran out. The rivers flowed differently today as well – much less water. People began to move from the fields to the cities until the slums overflowed. There too, water ran out as the drills ran ever deeper and people built slums over ponds.
For the rich, apart from the threat of disease and sporadic violence, it’s not so bad. They have cooling. They have access to cheap labour. But there is a simmering, something has to give. And when it does…
If only…20 years ago, he was a young boy, and heard talk of people marching to take action. The rest put them down, saying no action was necessary, it was too expensive, what can a few of us do. If only…they had taken action.
Two roads are diverging before us now. We can choose to be ostriches, hiding our heads under the sand and hoping business as usual continues. Or we can choose to act.
The most impactful individual action would be to watch what we eat and cut down our consumption of milk and meat. Be mindful of food waste and of the need to quickly adapt our plants to a rapidly heating environment. Agriculture uses 75% of our water and ruminants like cows cause twice as much greenhouse gas emissions as our transportation sector in India. We waste/lose a substantial portion of our food from farm-to-table. This action is a no-brainer. As is switching to LED lighting or energy efficient appliances. Enabling a Bus Rapid Transit System for our cities is a little harder – we need the discipline, but a climate-friendly escape from our torturous daily commute is worth the effort.
The next big action would be to manage our waste – segregate, compost and repurpose it – to prevent it from clogging up our waterways and water bodies. Because flooding that is likely to increase in our cities, and managing our waste is a key step to reduce our vulnerability. We should learn from the success of others – Israel or Singapore – who have learned to treat and reuse their sewage and price water – allowing them to thrive.
What we eat has a surprisingly large footprint on the climate At this point in the series, we turn to action - what we can do to mitigate and/or adapt to the changing climate. And last time, I said we would start with what we eat.As a person who has been on semi-permanent diet for what seems like forever, I am intensely conscious of what I eat. In a land of diabetics, I suspect many of us are.
Are we thoughtful of what we eat or is it merely the portion size and calorie content that catches our attention? If we are thoughtful, perhaps we should ask ourselves some questions.
What am I eating? Where is it from? How is it produced? How is it prepared? How does it impact the planet? When are we eating it - that is, is it “in season”? What about the waste?
These are important questions: both for our health and the health of the planet.
So let us start with what we eat.
Are we thoughtful of what we eat or is it merely the portion size and calorie content that catches our attention? If we are thoughtful, perhaps we should ask ourselves some questions.
What am I eating? Where is it from? How is it produced? How is it prepared? How does it impact the planet? When are we eating it - that is, is it “in season”? What about the waste?
These are important questions: both for our health and the health of the planet.
Would it surprise you to know that greenhouse gas emissions from the livestock sector alone are estimated to be ~14% of total global emissions, more than the direct emissions from the transport sector? But while many of us know that improving the fuel average of our car or taking the bus will help mitigate climate change, few of us, I suspect, think of what we eat playing a major role in exacerbating climate change.
There is another reason for agriculture and specifically the livestock sector’s importance in the climate change debate. We have seen that the changing climate will put intense pressure on our water resources, so optimising our water use is critical. We hear the refrain constantly in our lives “Turn off the tap; don’t waste water”. High end luxury hotels wear their “greenness” on their sleeves by asking us to opt to reuse our towels or linens while serving menus overflowing with off-season vegetables and exotic meats. These cosmetic measures are worse than useless; unless we target and reduce water use in agriculture, we are, to quote a former colleague, rearranging the deck chairs on the Titanic in our battle to conserve water. Why? Agriculture consumes more than 85% of the water we use.
Agriculture impacts the water system in several ways. First, the choice of crop or livestock (some take up a lot of water, some a lot less). However, because water is not priced appropriately, farmers decide which crop to grow based on other considerations. Second, the technology used in growing crops: often technologies such as drip irrigation, building check dams or farm ponds, using the SRI method of rice propagation etc. save water but do not make commercial sense for farmers because water is considered free. Third is the scale of post-harvest waste in the agricultural supply chain. In countries like India, waste occurs near the point of production as poor storage facilities or cold chain infrastructure causes food to rot. India loses half its production of fruits and vegetables and substantial portions of its grain, milk and meat to waste- wasting with it the man power, water, fuels, fertilizers and pesticides used to grow, protect and transport them.
Recommendations to price water or redesign the food distribution system are out of scope of this series. But, what can we personally do? The easiest way to lower our impact on the climate and adapt to a warmer and dryer world is to eat less meat and thus impact the farmer’s choice of crop. Why is that? Calorie for Calorie or gram for gram, meat takes more water to grow than vegetables. Beef takes 112 Litres of water to provide a gram of protein, compared to the 34 Litres that chicken takes to do the same or the miniscule 19 Litres for pulses to provide a gram of protein. While strident environmentalists may advocate going vegan, all of us, all at once, that solution is not practical. As we become wealthier as a nation, we aspire to the “better” life - which includes increasing the amount of meat in our diets. And surveys show that people’s eating choices are guided by more immediate reasons - taste, cost, aspirations - rather than a need to act for the societal good. But the same surveys also show that when people are aware that their eating choices impact the climate, they are willing to change, especially in countries like India. So perhaps we do not go vegan all at once. Just substituting one out of three meals of red meat with chicken or pulses could be the first step in a long journey.
Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The next article in this series will appear on June 1.
Feedback and questions may be e-mailed to climaction2015@gmail.com
Mridula Ramesh is the Executive Director of Sundaram Textiles. She is also a student and teacher of global warming.
Understanding the under-appreciated link between milk, beef, cows and climate change
Cows (or buffaloes) and people have a lot in common. We are both mammals, after all. This means we lactate to feed our children. Cows begin to breed when they are about 3 years old. Once pregnant, they give birth after 10 months. That's when the milk comes in. In many cases, the calf is taken away from its mother, and if male, either killed, abandoned or castrated. If female, the calf is kept to propagate her species. Typically, two months after giving birth, the cow is impregnated again, and the cycle continues for about 5 more years. At this point, the cow's milk yield falls too much to remain economical, so she is either abandoned or most often sold for slaughter. Lest you say "Goshala", these are few and far between and not a sustainable option for our 100 million plus adult female bovines.
There it is -- the unfortunate and often unacknowledged fact that beef is a corollary of milk.
Fast forward to the slaughter house, a 350 kg cow (or heavier buffalo) is washed, stunned and slaughtered. What happens next depends very much on the slaughtering context. In modern abattoirs, most of the animal is used, the blood, the organs, the hooves, the bones, the meat. In less modern context, most of the animal is wasted, yielding less than 160 kg of beef from the live cow. This is important. Because all of these wasted parts took fodder and water to grow. And disposing of the waste pollutes more water.
Why bring this up in the climate context? Because India is a hot and dry country where water is going to become scarcer in the future; Because agriculture uses more than 80% of India’s water consumption and; Because livestock are an important part of agriculture; And because making the world hotter by increasing greenhouse gases will hit India very hard.
A milch cow has a useful life of less than 8 years. All this time she is eating - either grazing on marginal land and/or being fed crop concentrates. Water is used in producing those crops (referred to as “virtual water” by scientists), or forests are/were cleared to produce that foraging space. A 1,000 litres of water are used to produce a kg of milk, 2,000 litres of water are used in producing one kg of soybeans while 15,000 litres water is used to produce a kg of beef. Most of the water used by grazing cows is “green” water or rain water used in production of crops or grass. But a substantial portion of water used to grow crops comes from “blue” water or surface and groundwater. This is water that is not easily replenished, especially the groundwater.
Cows also emit large quantities of Methane. Methane is a greenhouse gas, second only to carbon dioxide in its global heating potential. There is a type of bacteria that lives in the cow’s stomach that releases methane which then escapes when the cow burps. There is also the dung. That's a source of another greenhouse gas - this time Nitrous Oxide aka laughing gas - not quite in the same league as CO2 or methane, but pretty potent nevertheless. Globally, beef and dairy cattle contribute about seven per cent to the global greenhouse gas emissions directly (more if we were to account for transportation and forest clearing on their account). To put this in perspective, this is more than India’s total contribution to annual global greenhouse gas emissions.
We have added 45 million bovines in India in the past 10 years to a current total of more than 300 million cows and buffaloes. This is not the best thing for our climate.
Would we solve the water or climate problem by cutting down our domestic meat or milk consumption? Not quite. As per the latest USDA report, India has been steadily increasing its beef exports to become the No.1 exporter of beef in the world. We are essentially exporting large quantities of our “virtual water” that is essentially unpriced, until of course it runs out.
Also the livestock sector is an integral part of India - socially, culturally and economically. Livestock contributes 4.5% to the national GDP and provides useful income buffers for the most vulnerable members of our society - rural women and landless workers who supplement their meagre incomes and nutrition from the milk and meat income the cows/buffalos provide, especially in times of drought. Beef and leather exports provide valuable foreign exchange.
There are many things we can do: being thoughtful of our dairy consumption, providing farmers with other revenue streams or moving to more efficient (and humane) abattoirs.
But the first step is being aware of the link between milk, beef, water and the climate. Should we price water? One thing is clear - if we don’t price our water resources, when it eventually becomes much scarcer, all of us will pay.
Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The views expressed in the articles are those of the author
The next article in this series will appear on May 15.
Feedback and questions may be e-mailed to climaction2015@gmail.com
(Mridula Ramesh is the Executive Director of Sundaram Textiles. She is also a student and teacher of global warming.)
A promising area of change for the better
In the last article, we considered the climate impact of India’s love for milk (short summary: not good). This time we will consider another aspect of our food: how we cook it. Most readers of this newspaper will perhaps not have more than the slightest acquaintance with wood-fired stoves. Most of us are still wondering whether or not to voluntarily give up our LPG subsidies (more than 3 lakh of us have).
But millions of Indians cook with stoves fuelled with wood, dung or some other form of biofuel. That’s not a good thing. Why?
For several reasons. We'll deal with three here: the warming impact of the black carbon in the smoke generated from using these stoves; the negative health impacts of the smoke, and third, the negative consequences of the smoke on agricultural yield.
"Biofuel” or wood stoves are quite inefficient: they don’t allow the biofuel (for simplicity, let us call this wood) to burn fully: witness the telltale blackish smoke that emanates from them. The primary constituent of this smoke is what scientists call “black carbon” and it warms the world. Black carbon, or soot, absorbs the sunlight directly in the air and releases the trapped energy as heat, warming the air (I'll pass now on the albedo and cloud formation effects). Many leading scientists believe black carbon to be the most potent warming agent after CO2. While the climate benefits of reducing black carbon are clear, there is some uncertainty on how much benefit we will get. Why? Because the smoke that emanates from a cookstove is a complex cocktail of chemicals, some of the which (like soot) warm the climate while others cool it down. This means that cutting smoke may not slow down warming by as much as some models predict.
The second reason: Health. According to the World Health Organisation, 4.3 million people die globally each year due to indoor air pollution (the small particles in the sooty smoke travel deep within the lungs causing many ailments including heart disease and cancer). A million die every year in India from indoor air pollution, and the primary cause of this pollution is the use of biofuel cookstoves. While there is so much attention on outdoor pollution from vehicles, very little popular attention is directed towards indoor air pollution and its causes. The burden hits hardest on women (the primary cooks) and the very young children (who stay by the women). Moreover, the health burden is being transmitted to the next generation because even the unborn children are affected by the smoke. We also need to consider the effort and time taken to gather firewood. This again falls hardest on the women of the household, often on the girls. Lest you say development will take care of this, even in a relatively developed state like Tamil Nadu, more than eight million of a total 16 million households use firewood to cook some of the time.
The third significant negative impact of cookstoves is the creation of tropospheric (or ground level) ozone. While ozone in the upper atmosphere is a good thing - absorbing ultraviolet rays and preventing cancer, it is not good at the ground level. Why? Because it lowers crop yields. In a context of so much farmer pain from crop damages, this is an under-appreciated reason why agriculture may be suffering.
To sum up: most Indians cook with wood fires (technical name: solid fuel cookstoves). This is bad from at least three perspectives: health, the climate and agriculture. The negative impact falls hardest on those least able to cope with it: the poor women and children.
So why is the use of wood-stoves continuing? First and foremost, due to lack of awareness. Many users of wood fired stoves do not know the negative impacts of using those stoves. Second are financial barriers to adoption of more efficient cookstoves. Often, in rural situations men make the financial decisions of the household and they are less enthused than women (who bear the brunt, especially in terms of health) in investing in efficient cookstoves. Third, the design of cookstoves needs to ensure the efficient burning of a diverse variety of fuels and generate enough heat to cook what people are used to eating. Doing this while keeping the stoves cheap and sturdy is a significant challenge. This is an exciting area where many NGOs and startups are taking action. Many startups are experimenting with cookstove design; others with providing microfinance and marketing to help more households adopt cleaner cookstoves. And as awareness builds up that efficient cookstoves save health and money in the medium term, increasing numbers of households are transitioning to using more efficient stoves. There is hope.
Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The views expressed in the articles are those of the author.
The next article in this series will appear on May 29.
Feedback and questions may be e-mailed to climaction2015@gmail.com
Can you believe that 1.3 billion tons of food, about a third of all food produced, is wasted globally every year? Lost. Wasted. Uneaten. Thrown away. And with it all the energy and water used to produce, store and transport this food.
Think about it. Global annual food waste is equivalent to junking 7.2 million blue whales or 100,000 Taj Mahal's worth of food every year. The CO2 emissions produced in growing this food is 3.3 billion tons of CO2 equivalent/year (in 2007 numbers). This makes "Food wastage", if viewed as a country, the third largest emitter after China and the US, and more than India's total CO2 equivalent emissions for a whole year. The blue water (or water drawn from lakes, ponds and groundwater) used in producing this wasted food is 250 cubic km of water each year - about 3.6 times the entire US's blue water consumption. In a water-scarce world, that's criminal.
Also consider another angle: while we as a world, waste so much food, more than 800 million of us don't have enough food to lead a healthy life. There is a philosophical difference between emitting CO2 or using water to grow economies or build infrastructure and emitting to waste. The latter is unjustifiable on every level.
Each country is a little different: poorer countries like India have food loss (as opposed to food waste) that occurs in the post-harvest, processing and transport of food, driven by the lack of infrastructure for efficient storage, processing and transport. Richer countries (and richer people in poorer countries) have food waste in downstream segments - driven by poor retail practises (both supermarkets and restaurants) and careless consumption.
Let us look at the consumption end of the spectrum a little more closely.
Food occupies a small portion of the wallet for consumers in developed markets - hence they buy more than they need. American families are estimated to throw away about a quarter of the food and beverages they buy. They consume more too. Dinner plate sizes have increased 36% from 1960 to 2007. Portion sizes in restaurants have increased as well leading to more food added to ever-increasing waistlines or every-growing landfills.
Supermarkets add to the problem - anything deemed (sometimes arbitrarily) less than perfect is discarded, even though it could be perfectly edible. Grocers store more than required - believing that customers buy more from plentiful shelves. In a global supply chain, many fruits and vegetables travel thousands of kilometres to supermarket aisles, only to be thrown away.
Food waste contributes in another way to climate change. All that waste has to be transported from homes and businesses to landfills. Rotting food makes landfills potent sources of methane, a greenhouse gas. Indeed methane emissions from landfills make up almost a fifth of annual US emissions of methane.
The solutions depend on the situation.
France has recently passed a law that requires supermarkets to sign contracts with charities to dispose of edible food waste and prevents them from deliberately spoiling (by adding bleach for instance) edible food that had been thrown away. This is in addition to a proposed education campaign on food waste for schools and businesses.
In countries like India - growing, hungry and water-starved - the crying need of the hour is better investment in infrastructure so that less food is lost before it hits retail shelves. Indians, on average, are better at not wasting food once they buy it - about 8 kg per capita per year vs. ~ 100 kg per year wasted in the US or Europe. But an average figure conceals all manner of sins. The urban affluent Indian customer is mimicking his western counterpart - buying, eating and wasting more food than she needs. Thus the western problems of increased waste in landfills and obesity are being replicated here. Again the solutions are simple and actually save money - buy what you need, segregate waste, and compost food waste. However, before this becomes an ingrained habit, we need effective campaigns to promote this habit. Awareness is key here. Bangalore has a thriving waste management system - there are companies and NGOs, often working together, to manage waste. Many segregate waste at the customer site and then collect it so that instead of 90% of all waste going into the landfill, less than 10% does. Composting, while gaining popularity, still has not taken off in a big way.
We need to make wasting food an unattractive proposition - both morally and economically. Today, for those of us who waste food, buying food and throwing it away is too cheap . And the planet is paying the price.
(Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The next article in this series will appear on June 12.)
Feedback and questions may be e-mailed to climaction2015@gmail.com
Mridula Ramesh is the Executive Director of Sundaram Textiles. She is also a student and teacher of global warming.
Is going organic an effective and feasible solution for combating climate change?
Till now we have we looked at the impact of what we eat, how we cook it, how much we eat and waste and the impact of all of these on our climate. The takeaways are: eat less meat (especially beef), consume fewer dairy products, be conscious of the impact of cook stoves and be mindful of your food waste.
I am now moving on to two other aspects of food’s impact on climate change: the distance food travels to get to your plate and the seasonality of food. Rather I want to focus on “Organic, non-GMO (non-genetically modified organism) movement” and consider its impact on the climate.
What does organic mean? A common definition (and there are many) refers to crops that are grown without the use of manmade fertilizers or pesticides. Some definitions also exclude the use of GMOs that contain genetic information from another species.
Let us consider feasibility first. Without fertilizer and pesticide use, many of us would starve. Without genetically modified crops and the judicious use of fertilizers, current projections by scientists hold it next to impossible to feed the 9 billion+ global population in 2050 especially when a warmer and dryer (in parts like India) world will make it harder to grow crops.
What about effectiveness in combating climate change? Let us start with looking at agriculture’s contribution to global greenhouse gas emissions. The Inter-governmental Panel on Climate Change (IPCC), the premier scientific organization tasked by the UN to provide the scientific basis on global warming, says that Agriculture and Land use change (including deforestation), or AFOLU, contribute roughly a quarter of total human-related greenhouse gas emissions. Deforestation and land use change accounts for almost half of AFOLU emission. The second largest category in AFOLU emissions are ruminant animals, mainly cows. The contribution of synthetic fertilizer use is quite small, a little more than a 10th of AFOLU emissions, but it is said to be growing quite rapidly.
What does that mean? It means we should first try to maximise yields of our crops (so that fewer forests are cut) and move away from dairy/beef rather than focussing on cutting fertiliser use. We, as a species and certainly as a country can do much better in our fertilizer use. We use too much of it and in ratios that don’t necessarily improve yields, leading to problems like nitrate contamination of our drinking water supplies and algal blooms while worsening our country’s fiscal situation. In a future that combines a larger, wealthier (wanting more calories) population with a climate less suited to high agricultural yields, fertilizer use cannot be done away with. But it can and should be rationalised.
Turning to pesticide use, the issue is more about soil and human health and biodiversity. Use and overuse of pesticides lead to problems in human health such as cancer, hormonal influences etc., reduces biodiversity, pollutes our water and air resources and leads to lower soil health. The last has a direct climate impact, as less healthy soils stores less carbon.
But consider this. Pesticide use in India is quite small, relatively speaking, at 0.5 kg/hectare vs. 7 kg/hectare in the US or 13 kg/hectare in China. Moreover, about half of the total pesticide use in India is in growing cotton. And in there is an interesting story. A study published in Ecological Economics looks at the impact of the introduction of Bt Cotton in India wherein pesticide use has been cut by half to improve yields. Farmers are happy. So genetically modified crops have a role to play. I would guess an increasingly important role as the climate begins to go places it has not been before in recent history. We need to be thoughtful of how to use this potent tool – balancing short term efficacy with maintaining genetic diversity.
Perhaps take a more nuanced stance on our fertilizer and pesticide use– they directly do not contribute hugely to greenhouse gas emissions, and have a role to play in increasing yield and therefore lowering the land footprint of agriculture. They do have negative consequences for human and environmental health and, therefore, have to be used judiciously. There are obvious actions to be taken in fertilizer pricing and subsidies while pesticide use can be tempered with knowledge, use of bio-fertilisers and selective use of pest-resistant strains of crops. There are many companies and organizations working on improving agricultural yield while cutting down fertiliser/pesticide use. Let us support them.
With this we shift to the next bucket list of actions – how we move and how that impacts our climate.
Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The views expressed in the articles are those of the author.
The next article in this series will appear on June 26.
Feedback and questions may be e-mailed to climaction2015@gmail.com
(Mridula Ramesh is the Executive Director of Sundaram Textiles. She is also a student and teacher of global warming.)
Understanding the impact of “how we move” on our climate involves answering several questions: Why do we move? How do we move? Where do we go? How do we consume? Why care?
Let’s start with: Why do we move? We travel to get things done: youngsters go to school, to college. People travel to their place of work or to meet other people – potential customers, suppliers or peers – in other cities or countries. We travel for fun – to theatres, to restaurants, holidays or pilgrimages. We travel to leave an old life behind or to discover new paths. As much as anything, the fact that travel has become easier is a defining feature of our age today. And that is precisely why scientists believe that addressing transport emissions is going to be tough.
How do we move? We can walk, cycle, take a motorbike, an auto, a car, a bus, a truck, a boat or a plane to where we need to go or a combination thereof. Each of these has an impact on us, the economy and the climate. Walking or cycling is good for our health and for the climate. Taking a flight is good for the travel industry, convenient (for the most part) yet not good for the climate.
The next question is an important one. Where, or how far do we move? Closely related to “Why do we move” – the answers to this question have implications on how we move and the design of our cities.
How do we consume? An increasingly efficient global economy means that manufacturing is steadily moving to the lowest cost destination in the world with increasing distance between the point of production and consumption. This has perhaps been the driving factor behind the rise of China as the world’s factory. But as we move to a service-consuming society, perhaps this freight movement will become a people-movement as people travel to experience what the world has to offer.
Perhaps the most important questions is: Why should we care? We should care because transport creates about a quarter of our global emissions from energy (slightly more for developed countries and slightly less for a country like India). The transport sector (encompassing our vehicles, our trains, planes and ships) emits a little more than 10% of overall greenhouse gases that warm the planet. And the sector has been growing fast. According to the IPCC, emissions from the transport sector have doubled since 1970 and are the fastest growing energy end-use sector. And unlike many other energy using sectors, the transportation sector is expected to grow as the increasingly wealthy Indians and Chinese want to experience more of the world first-hand.
As things stand, this tremendous growth of the transport sector is not compatible with a world that is a relatively pleasant to live in. That is, a planet whose warming can be kept within 2⁰C of the pre-industrial age average temperature thereby avoiding what many leading scientists call “catastrophic climate change”.
There are other issues to consider as we look at revamping our transport infrastructure to address the climate. One is pollution – caused by vehicle emissions that impact human health directly by causing problems like cancer and asthma. As our recent headlines proclaim, this is an increasingly important issue and one of the additional benefits of addressing the transportation sector. The second issue to consider is the increasing urbanization of the world and the ramifications of that on transport. In 2009, the world achieved a unique milestone: we became more urban than rural. And that trend is going to accelerate. Which brings us to the familiar traffic snarls and its concomitant unpleasant, unproductive time, unless we change the way we get to work and move around our cities.
So what can we do? Let’s start by acknowledging that the majority of Indians have an extraordinarily low transport climate footprint. For the poor, travel is expensive, so many do not do it, at least not in motorised, polluting ways.
For the rest, there is plenty to do. I shall focus on the following in the next set of articles: elements of smart city design that combines carbon-light transport options with locating places of work closer to homes, how to increase the efficiency of our travel, the behavioural modification necessary in thinking of transport, and new technologies that impact transportation: including electric cars and 3D printing. It’s going to be an exciting time.
(Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The views expressed in the articles are those of the author.)
The next article in this series will appear on July 10.
Feedback and questions may be e-mailed to climaction2015@gmail.com
(Mridula Ramesh is the Executive Director of Sundaram Textiles. She is also a student and teacher of global warming.)
The world is urban – over half of the human population lives in cities and more head there every day. This fact makes the design and redesign of our cities an urgent and important task. Asimov wrote with such imagination in his Caves of Steel: painting a future where humanity has retreated into its cities – massive caves of steel where the population ate genetically modified strands of yeast, lived in efficient quarters where status is defined by whether one had a washbasin at home or not, dined in communal dining rooms and travelled by strips (moving pathways) or super-fast trains. There was little or no pollution and people lived highly regimented lives. The last word is an important one to consider as India strives to make her cities smarter.
Regimented. Very strictly organized or controlled. The psychological backbone necessary to increase the IQ of cities.
Last week, my family visited a park. Now, imagine in your mind’s eye how this might happen in a futuristic smart city: we would take some form of efficient transport there – bus or light rail, perhaps even walk. The transport would leave on time and be clean. Once there, I could flash my RuPay/Aadhar card to gain entry into the park (necessary to collect preferred visit times and plan for visitor volumes). The rides would be clean, the walks broad and the plants well maintained – perhaps even nourished with treated waste from the surrounding buildings. We would have performers and my phone would make suggestions based on what it knew about me. We would have a relaxing time and leave, back to our efficient house.
Let us now consider what really happened. We took the car there – there was a lot of honking, stopping and a near miss. When I tried to buy a parking ticket – the vendor (he wore no uniform) tried to sell me a ticket with a ridiculous (and unprinted) price. When I told him I would call the police, he rolled his eyes at my naivetée settled on a compromise – while repeating this story to a friend, she said she too faced a similar experience the previous week. At the park, many of the slides were broken and the toy train was dirty. The children had a great time, as children often do. When finished, we honked and jolted our way home. Our city, as it stands today, is a very long way from smart..
We can start by defining what smart is. Then perhaps we can see how other cities in the world have become smarter. Lastly, we can see how to model our journey on theirs, customising it to suit our needs and realities.
Smart cities have several essential pieces. In this and the next article, I am going to focus on smart transport. Smart transport means both designing a city to minimise transport by collocating places of work or study with residences and building or enabling transport options that are low-emission and/or non-polluting. What do I mean by this? Building vertically is an option– large skyscrapers than allow for denser populations and efficient (and comfortable) transportation options like metros or bus services, and having dedicated bike and carpooling lanes. Let us focus on the transport options.
Take cycling first: oft cited as a cure-all, climate friendly city alternative, the question to ask is “Is it practical here?” My quick answer to that would be “No”. Why? First, psychology: do we have the psychological and legal apparatus in place to respect dedicated cycle lanes? Or will the bus driver view the hapless cyclist as prey? I suspect the latter is true. Second, the climate and the pollution: cycling in the temperate zone is exhilarating and thanks to high fuel quality and low particulate emissions, breathing the city air is not as harmful as it is in many Indian cities. The weather in India makes it unlikely for anyone who can afford a motorcycle or a car to take a cycle. This makes it an unrealistic mass solution for a developing country.
Similarly, our current lack of discipline makes carpooling a utopian dream – although there are several intriguing start-ups trying to make carpooling easier from a convenience and cost perspective.
This leaves us with Mass Urban Transit Systems. These come in many flavours – buses, light rail, metros or trains. Many Indian cities have some version of these operating. But not efficiently. Given these present the best opportunity to crack the urban transportation puzzle, we will delve into them in detail next time.
Climaction is a fortnightly column published in MetroPlus Weekend on alternate Fridays. The next article in this series will appear on July 24. Feedback and questions may be e-mailed to climaction2015@gmail.com
Mridula Ramesh is the Executive Director of Sundaram Textiles. She is also a student and teacher of global warming.
Printable version | Jul 10, 2015 3:09:40 PM |
Why the bus represents a good hope for urban transportation in India
My son’s current ambition is to be a metro driver. This was sparked off by a recent trip on the spanking new Chennai metro with grandmother in tow. He loved it. She loved it. There were apparently tons of people around taking selfies. It was a novelty. It cut the travel time from Alandur (near the airport) to Koyambedu to about 20 minutes from the earlier 1 hour or so. But my driver made, what to me, was the clinching remark: “Too expensive at Rs. 10 per stop”. My driver makes the daily commute from Tambaram to Gopalapuram in Chennai (about an hour’s train journey) Assuming there was a metro-option available for such a commute, the one-way price would exceed Rs. 70. The very-real conveniences of the metro come with too high a price tag. There’s the rub.
Suggesting what India should choose as urban public transportation modes for her cities is beyond the scope of this column. But as the public, we should understand how such choices are to be made. Let us start with what should be the first question: What is the problem? The problem encompasses increasing congestion, pollution and the climate impact of urban transportation. How can we measure this problem? Possible metrics could be average vehicle speeds in cities for congestion, PM (or particulate matter) levels for pollution and CO2 emissions for the climate impact.
In a study conducted by the Consortium of Traffic Engineers and Safety Trainers and reported by The Hindu shows that average vehicle speeds in Bangalore fell from 35 kmph in 2005 to 9.2 kmph in 2014. Data from IIT Madras, shows that vehicle speeds in Chennai (SP Road) fell from 49 kmph in 1992 to 20 kmph in 2014. Congestion is increasing in every city.
What are the ways by which congestion can be reduced? One is by lowering the need for transportation, or by collocating places of work with residences. Another is by reducing the number of vehicles in any given time; this can be done by reducing the number of vehicles overall, reducing the distance per trip or time spent by the vehicles on bottleneck areas or by spreading out the timing of commute. Well then, how can we reduce the number of vehicles? By accommodating more people per square foot of vehicle space. This is where rapid transit systems come into play. Hold that thought, while we consider the data on climate impact.
CO2 emissions by vehicle type (from IPCC data pertaining to US and Europe) varies from a low of buses (25-140 gCO2/passenger km) or passenger train (40-105 gCO2/passenger-km) to a high of motorcycles (85-220 gCO2/passenger-km) or cars (85-210 gCO2/passenger-km). So it seems a no-brainer to switch from individual to collective transportation, especially in cities where the number of passengers and congestion make it a viable argument.
Many factors: I took up a quick survey of my staff, many of whom commute to work by either public transport or two wheelers. The survey results were fascinating. Cost is a primary determinant of the commute mode. The marginal cost of operating a two wheeler is Rs. 0.7-1 per km at 2005 prices as reported in a study by Dr. Dinesh Mohan, of IIT Delhi. This determines the ceiling of public willingness to spend on public transport and essentially rules out the metro as a viable alternative for the two wheeler driving population. A dirty and overcrowded bus running on an erratic and perhaps infrequent schedule presents an unappealing choice to induce a person driving a two wheeler to switch. A car driver has a marginal cost of consumption of somewhere between Rs. 10 to Rs. 20 per km, so a metro is a viable solution, especially over longer distances. Here conveniences – comfort and the ability to use the time for something meaningful, and a well-developed network are drivers of substitution. Projects like the Bangalore Metro, with limited networks, are wonderful only for tourists like my son.
So what can we do? As many have said before, a rapid bus transit system (BRTS) makes eminent sense. A well-functioning BRTS requires, at a minimum, the following: Clean, attractive buses, predictable and frequent schedules, some form of right-of-way and a political will to see this happen. There are barriers to this, starting with our narrow city roads that make dedicated lanes for buses difficult, and the political penchant for metros. But when metro systems cost as much as ten times as a BRTS, and our congestion and pollution continue to mount, we owe ourselves to try to make them a success. There is a Chinese proverb: “To know the road ahead, ask those coming back” – next time we will consider those cities that have made the BRTS a success.
Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The views expressed in the articles are those of the author.
The next article in this series will appear on August 7.
Feedback and questions may be e-mailed to climaction2015@gmail.com
(Mridula Ramesh is the Executive Director of Sundaram Textiles. She is also a student and teacher of global warming)
Last weekend in his “Mann ki baat”, Prime Minister Narendra Modi brought up road safety, saying “One accident takes place every minute in India”. The data from the Ministry of Road Transport supports his statements: In 2012, five people died every day, on average, in road accidents in Delhi, four in Chennai and two in Bangalore. While “driver error” is cited as the leading cause, congestion is surely the leading enabler. Simply put, if we have too many vehicles on the road, they are more likely to bump into each other. We’re driving slower too – congestion has more than halved average driving speeds in many metros in the past 10 years. Yet we also have more people moving into cities and getting wealthier, leading to more vehicles in the road each year. What to do?
We saw last time that metros were perhaps too expensive for all cities in India given the high levels (about 60%) of two wheelers in the traffic. Why is this? The cost per km for a two wheeler driver
is One rupee per kilometre, making a fare of Rs. 40 per person per trip too expensive. Let us therefore look at other successful (and the less successful) examples of Bus Rapid Transport System
(BRTS).
Buses are unglamorous and considered “uncool”. And there’s the pity. Public imagination is unfortunately caught up with metros and electric cars – neither of which will provide the solution that buses can for the twin problems of climate change and congestion – if and only if certain conditions are met.
What are those? Well, the poster child of a BRTS is the Transmilenio operating in Bogota in Colombia. Up to 1,500 buses carry 1.4 million riders daily in its 100+ km network. Success can also be found closer to home in the Ahmedabad BRTS.
The salient features of these good systems are (a) dedicated lanes – this is the key point for a successful rapid transit system: you want a system that is predictable and fast? Give it a separate lane (or two). Allowing irate car drivers, giggly teenagers on scooters and cows to share a lane with a bus system is to make it a slow bus system. (b) Offline ticket collection mechanisms: Successful BRTS have ticket dispensers in the stations, and the passenger cannot board a bus without a ticket. (c) Predictable and Frequent Schedules on clean and convenient buses: If a bus comes only every hour and sometimes not even then, it is unlikely a person with access to private transport will choose to travel on the bus.
This was the hallmark of the TVS Bus service that served Madurai in the past. Buses were clean and they ran on time to a published schedule. “You can set your watch by the TVS bus” was the popular adage, and that contributed in no small measure to the success of the service. Most modern BRTS have low floor or flat floor buses that are level with the platform allowing for easy and quick boarding (d) a meaningful network: the Transmilenio has 112 km length in its network; Ahmedabad’s’ Janmarg has 85 km in its network; with a station every 500m.
In contrast, the hugely unpopular and unsuccessful Delhi BRTS had a ridiculously small 5.8 km in its network. If we were to examine how to fail, the Delhi BRTS would show us the way: Short network and shared lanes -- police rarely notice let alone punish those who get into the “dedicated lanes” for the buses. Add to this the lack of coordination with the metro schedules. On-board ticket collection allows Mrs. Kapoor to fiddle for change in her commodious handbag forever. Steps in the buses cause delays in boarding. Lack of public engagement leads to lengthy media campaigns against the BRTS. Why do we even feign surprise at its failure?
We need an affordable rapid transit system in many of our larger cities. Evan Auyang, the Deputy MD of the Kowloon Motor Bus Company – one of the largest bus operators in the world and one of the providers of public bus services in Hong Kong, says that a rapid bus transit system is a great choice for a country with limited capital to spend and an essential part of the urban public transport mix. Prof. Shivanand Swamy of CEPT, who designed the Ahmedabad’s BRTS says much of the resistance to a BRTS comes from the image of a slow, low cost system that takes away road space from a car. Politicians would love to spend on a glitzy metro instead as a concrete, but perhaps not credible, testament to their actions. This resistance needs to be overcome, because as he says, we cannot have mobility for the masses if we don’t make space for the climate-friendly, economical bus. In his words: “Dream of a metro; try and build a BRTS.”
(Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The views expressed in the articles are those of the author.)
The next article in this series will appear on August 21.
Feedback and questions may be e-mailed to climaction2015@gmail.com
(Mridula Ramesh is the Executive Director of Sundaram Textiles. She is also a student and teacher of global warming.)
Keywords: Urban transportation, climaction, road transport, accidents
The last few articles have looked at the inter-linkage between transport and our climate. While choosing a Bus Rapid Transit System for our cities is a great long term choice, what can we do today?
Let’s recap. Transport has a large CO2 emissions footprint: about 13-15% of total global greenhouse emissions are caused by transport. Road transport contributes ~70% of this. And most road transport vehicles are cars, trucks or two wheelers driven by people like us.
And while it will take time for auto companies to invest in more fuel efficient technologies especially in the current cheap oil environment, we can achieve substantial CO2 emission savings by “how” we drive. And, this change is not technological, it’s behavioural. The typical gap between ideal fuel average for a car and actual fuel average for a car is about 30%. Some of that has to do with the “stop-and-go” traffic that we are accustomed to but a lot of that has to do with “how” we drive.
Long ago, when I was a teenager, I used to favour what experts call the “Jack Rabbit” style of driving.
This involves driving fast, braking hard and driving fast again. Fuelled by a potent mix of impatience and inexperience, the “Jack Rabbit” style results in an unimpressive four per cent reduction in travel time and increases emissions by five times.
The next is driving speed on the highway. It’s macho to drive fast. Hell, it’s thrilling to drive fast. Wind racing through the hair, music blasting. You feel young and alive. Alas! It is not good for the environment. The peak of fuel efficiency on the highway for many cars is around 90 kmph (about 40-50 kmph for motorbikes) and slower for trucks (60 kmph). Again the key is to keep the engine rpm constant. In TVS company, even before the advent of GPS, there was a system of Tachographs installed in the trucks to monitor the speed and stoppage of all vehicles. That way it was ensured that the drivers drove to a constant speed and managed the fuel average.
The third is tyre pressure. The only behavioural change required here is to check the tyre pressure once a week and set it to the maximum recommended pressure as per the manufacturer’s guideline. This practice promotes safety as well as increased fuel average. And given that this is one of the most ignored driving habits, it offers the most potential for improvement.
The fourth is getting one’s vehicle serviced frequently so that not too much energy is lost to frictional losses.
The fifth again is a rookie mistake – driving at a lower gear. You can do more damage to the environment (not to mention your vehicle) by driving in the first gear for extended periods of time rather than shifting to a higher gear. There are many more, but I will stop here. Why? Because these suggestions are less than useless words on a paper if they don’t translate into action.
Let us divide the readers of this column into two: the “value” conscious customer and the pleasure seeker. These are not binary states but form two ends of a spectrum – we all lie in different points along it. Those of you who lie on the value end of the spectrum will follow all of the points listed above and will probably add 10 more to the list. Those who lie on the pleasure seeking end of the spectrum will say “I want to rev up my engine so hard that people in the next city should hear me.”
I now write to those who lie on the value-half of the spectrum: perhaps you did not know that some of these things could make this much of a difference, but perhaps it was not so visible. Here is an example: Assume you own a motorbike driving 50 km per day. Assuming a 50 kmpl fuel average, a 20% improvement through behavioural change, translates to a Rs.5,000 saving per year.
On a monthly income of Rs. 15,000, that’s a 2.5% saving. Similarly for a person earning Rs. 30,000 and drives a car with a 20 kmpl average, the savings translate to 4% of their income. But look at it another way, by saving the petrol, you also save 200 kg of CO2 (for a bike) or 600 kg of CO2 (for a compact car) every year that would have otherwise been emitted. Put this in perspective, an average Indian emits about 1.6 tons of CO2 per year. By just driving more sensibly, you can save 13% to 35% of that. (An average Indian does not own a motor bike or a car, but leave that aside for now).
Onto the pleasure seeking side: emissions are not cool. An inappropriately inflated tyre is not safe.
Driving like a “Jack Rabbit” makes you look like a rookie. Enough said.
Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The views expressed in the articles are those of the author.)
The next article in this series will appear on September 4.
Calculating the electric car’s “green-ness”
Contributing between 13-15% of CO2 emissions, the transport industry needs to become greener. But that can come in “true” ways – driving more efficiently, switching from individual to mass transit, avoiding unnecessary travel and flying less or in “false” ways. The latter is the subject of this article.
Greenwashing. That’s advertising-speak for making a product appear more environmentally friendly than it actually is. Greenwashing is becoming more common as more of us are becoming interested in the environment. But instead of truly becoming green (reducing CO2 or other greenhouse gas emissions or reducing the water footprint), it has become a fashionable tag. Say, for instance, the “Reuse your bedsheets” pledge in 5 star hotels, the uncertified “organic” everything, the biofuel use and the electric car to name a few.
Electric Vehicles have captured public imagination as a great solution to global warming, a wonderful image of a guilt free transport option. But are they green? Do they effectively address the greatest environmental problem: global warming?
To answer that let us consider the emissions of an electric vehicle. There are emissions involved in the manufacturing of the vehicle itself and then there are the emissions associated with the tailpipe or with the combustion of the fuel used to power the vehicle.
Tailpipe emissions. An electrically powered vehicle has none. And this is the reason why it is considered “green”. But is that really true? Not in all countries, for the vehicle is powered by the grid and the grid in most countries is powered by fossil fuels.
For India, based on the information from the Ministry of Power, our grid is about 60% coal-powered, 16% hydel, 12% “Other renewable” and 9% gas. In reality, the share of coal in generated units is probably a little higher, given that wind and hydel tend to be seasonal. The Central Electrical Administration has used emission factors to arrive at 0.82 tons of CO2 per MWh of power generated. This means that for every unit of electricity generated, 820 grams of CO2 are emitted. Other greenhouse gases are emitted too but not captured in this estimation.
But the electric car is not charged at the point of generation. It is charged at our homes. So the electricity has to travel all the way from the point of generation to the point of use, subjecting itself to a transmission and distribution loss. In India, this is about 23% officially and much higher unofficially. Some part of the loss is technical – i.e., losses that are physical in nature – due to friction, heat and other line losses caused both by the nature of transmission and by the aging equipment or overloading. The other part is “commercial” – units that are generated and used but not paid for – these include theft, agricultural units etc. There can be many points of view on how to assign the emissions caused by “lost” units, but, at the very least, we need to account for transmission losses when calculating the CO2 emissions emitted when a unit of electricity is consumed.
Using the above, the CO2 footprint (or the grams of CO2 emitted per kilometre travelled) is comparable for a Reva e20 at ~100 grams per km and a Nano at ~ 115 grams per km or a Maruti Alto 800 at 120 CO2 per km based on similar assumptions of driving conditions. This assumes that the Reva gives 90 km for a full charge, while the Nano does about 20 km per litre and the Alto, ~ 19 kmpl. Moreover, several studies show that if we were to add manufacturing CO2 emissions, or the emissions involved in making a car, an electric car in India has larger CO2 lifetime emissions than a comparable petrol car.
So, electric vehicles in India are no “greener” from a global warming perspective than comparable compact cars. They do have lower tailpipe emissions – the small particles of soot and other particulate matter that come out of the exhaust pipe of petrol, and especially diesel powered vehicles. But when there are so few electrical vehicles on the road (0.08% of the total vehicle stock globally in 2014), this is unlikely to make a large impact and with such a small gain in lifetime emissions not worth the effort to try.
Yet, the government of India has committed about Rs. 795 crore in 2015-16 towards the “Faster Adoption and Manufacture of Electric Vehicles” with an incentive of upto Rs. 1.38 Lakhs per vehicle as a demand incentive for electric cars. This is one subsidy that is not green.
(Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The views expressed in the articles are those of the author.
The next article in this series will appear on September 18. Feedback and questions may be e-mailed to climaction2015@gmail.com)
Mridula Ramesh is the Executive Director of Sundaram Textiles. She is also a student and teacher of global warming
We have thus far seen how what we eat and how we move affects the climate. To summarise, the transport sector is an important source of greenhouse gases, accounting for ~14% of overall emissions. In India, with more and more people moving to cities, coming up with a transport solution that balances cost, climate and convenience is the key. Surprisingly, the unglamorous bus, in its avatar of a Bus Rapid Transit System (BRTS), provides an ideal solution for many of the Indian cities. To belie scepticism, we looked at several case studies of cities to see what works in implementing BRTS. We then looked at what we could do to be more climate-conscious in our driving and then rounded off the transport set of articles with a look at what, on the surface appears green, but underneath is not – the electric car. While the electric car has captured the world’s imagination as a climate friendly transport solution, it is only as “green” as the grid from which it draws its power. And in a country like India, whose grid is coal-heavy, this is not a “green” solution at all.
Now let us come to how we live. The physical processes that make up Life are breathing, eating, moving, gathering resources, socialising, reproducing and resting. We have already considered eating and moving. Let us move onto resting – to our homes.
The world presses against our home, and our home, too, leaves its mark on the world – climatically speaking.
Consider your house (or apartment). Its climatic footprint consists of its energy use, water use, the waste it generates and its green cover. We could also add the dietary patterns of its residence and transport and shopping patterns to get a full picture. But for now, let us focus on the first three: energy, water and waste.
Your home consumes energy for lighting, cooling or heating, for pumping water and for cooking. You use water to eat, bathe and wash clothes/food/vessels/the home itself. And you and your home generate waste: packaging material, but more often food waste, which we discussed earlier.
Let’s see how big of a climatic footprint this is. Is it a big deal? Globally, roughly a third of all human-caused greenhouse gas emissions come from the production of Electricity or heat. In India, that number is a little higher – closer to 40%. About 22% of electricity in India goes towards the residential sector. So we have 9% there; if we were to add our cooking stoves, our LPG use and the CFC/HFC gases from our refrigeration, the residential sector easily contributes to over 10% India’s greenhouse emissions. And it’s slated to grow fast, as Indians buy up washing machines and air-conditioners to fulfil growing ambitions. India’s electrical consumption per capita is very low, ~160 units/person compared with a World Average of > 700 units/person, China’s 500 units a person or the US’s >4000 units per person. So, yes, it’s a big deal and expected to become bigger in the future.
Of this electrical usage, cooling (or heating) takes up a third of our average electricity consumption while lighting accounts for another third. But an average hides all manner of sins. For a wealthier urban household, air conditioning is likely to be the largest driver of consumption along with perhaps water heaters while for a BPL household, lighting (when available) will take up the lion’s share. Indeed, the urban poor live in the shadows with unreliable power supply. Kerosene usage and wood fuels make up the bulk of the CO2 emissions from home in the poor.
In the next few articles, we will consider how our homes and our climate interact with each other. In a hotter climate, our homes will have to become much better in keeping us cool. In some areas, we have to become thoughtful of our water use and reuse while elsewhere we have to cope with floods.
There is good news here. Reducing the climatic footprint of our house is one area which is mostly “Cash Positive”. Which means, you can do good for the planet, and benefit personally as well.
We will start with looking at ways by which we can lower the energy consumption of a house and also consider lowering the carbon emissions associated with that energy. Next we will look at the water footprint and see how to optimise that.
(Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The views expressed in the articles are those of the author.)
The next article in this series will appear on October 2.
Feedback and questions may be e-mailed to climaction2015@gmail.com)
(Mridula Ramesh is the Executive Director of Sundaram Textiles. She is also a student and teacher of global warming.)
The carbon price of light
How much our lives have changed after we could turn on the light at the flip of a switch. We have gained several hours of “productive” time – either for work or leisure. Our existence has been made better, yes better, by the introduction of electricity. But are we guilty of “Biting the hand that feeds us” syndrome when we say we should cut the carbon emissions of electricity?
First, a quick primer: Most of the electricity in the world comes from burning some form of fossil fuel –coal, oil, gas. Burning of these fossil fuels releases carbon dioxide (CO2) into the air which then begins to trap heat, thus warming the Earth. But, having the benefits of electricity is quite different from emitting CO2. For better understanding, let me split the explanation into three parts: first, where our electricity comes from; second, how much of it is “lost” on the way and why; and finally, how much electricity we consume for performing a given task.
Let us quickly take a whirlwind world tour to see how electricity grids across different countries are powered. Canada’s or Brazil’s grids are very green – that is, they emit very little CO2 for every unit of electricity generated because of the plentiful hydropower they have at their command. France’s grid emits very little CO2 – but then France is the leading user of nuclear energy. This is not a very palatable option for a world recovering from Fukushima. China’s grid is still powered primarily by coal (the most CO2-emitting source per unit of power) but it’s getting greener by the day.
India’s grid is not-so-green, powered 60% by coal, although the windmills of Tamil Nadu and the hydroelectric power of the North East play an important role. In smart grids in some parts of the world, and perhaps in our future, we can choose how green our electricity is – whether we buy power generated from solar, wind, hydro or coal. Today, we’re stuck with what we have. And this means, each unit generated in India emits a lot more CO2 than say in Brazil, so we need to be more careful
Next, let us consider how much electricity is “lost” on the way to our home. This is important because CO2 is emitted mainly at the point of generation, and whether or not the electricity is “usefully” consumed is not relevant. In India, our Transmission and Distribution (T&D) losses hover around 23% - from J&K with 60% losses to Kerala with “only” 12% loss. Think about that for a second: 1 out of 4 units generated is lost – either due to friction or more often, not paid for. For comparison, Japan’s T&D loss is four per cent while America’s is six per cent.
This brings us to an important point: you will not try to optimise what doesn’t cost you. We saw this point frighteningly proved in our agricultural sector – farmers in India don’t optimise their choice of crop for water, because for them water is essentially free. Similarly, many in India do not pay for their power – so they do not use it efficiently. RBI governor, Dr.Raghuram Rajan, made an interesting point in one of his speeches: "The tolerance for the venal politician is because he is the crutch that helps the poor and underprivileged navigate a system that gives them so little access.” This point is brought home by a paper by Min et al, 2013 that showed higher electrical line losses occurred just before elections in Uttar Pradesh in India. Look at it another way: it cost India Rs. 5.01, on average, to produce a unit of electricity in 2012-13. India realized, or received, Rs. 3.76 for each unit – suggesting that only 75% of its units were paid for. The numbers are worse for the Agriculture sector: India received only Rs. 1.46 for each unit costing Rs. 5.01 to make. A losing business proposition if ever there was one.
Now it becomes clearer – we are caught in a vicious cycle: Many do not pay for their electricity and so don’t use it in the best manner. Electricity boards do not have enough to make ends meet, so do not invest enough in infrastructure. Net result: high power tariffs for those of us who do pay and endless power cuts.
The last part of the carbon-electricity link is in how efficiently the end-consumer uses the electricity. We see that those who don’t pay for it are unlikely to use it wisely, but what do those of us who pay for our power do? We carry the weight of our coal-heavy grid and the added weight of our non-paying fellow citizens. What can we do to reduce our carbon footprint? That’s the topic of the next article.
(Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The views expressed in the articles are those of the author.)
The next article in this series will appear on October 16.
Feedback and questions may be e-mailed to climaction2015@gmail.com
(Mridula Ramesh is the Executive Director of Sundaram Textiles. She is also a student and teacher of global warming.)
Keywords: Climaction, price of light
What can we do to reduce the carbon footprint?
Last time we looked at the greenness of the grid and the reasons behind the added weight of Carbon dioxide emissions associated with the units of electricity we consume at home. This time, let us see what we can do about it.
An “average” Indian household consumes 1/20th the amount of power an American household does. Also an average American household uses about twice as much as an average European household with comparable standards of living. So an obvious answer might be to say, let us not do anything except to ask the Americans to be more efficient.
But overall, the Indian residential sector takes up a third of the total power consumption. Moreover, India has the fastest growing residential power use in the world. So, what can we do?
Let us start with asking who are “we”? To use the census data: In India, we are young and poor. So let’s take two case examples: a rural poor and an urban middle class youth.
Senthil lives in a home with an electrical connection. He is lucky as he lives in Tamil Nadu, where over 75% of the rural households have electricity. If he lived in Bihar, where less than 20% of rural households are electrified, an electrical light would be a wonder. As it is, most of his family’s energy use comes from the wood they burn to cook their food or heat their water. Since his house has electricity, his TV and his light is connected to the grid, but during the frequent power cuts, his family draws light from the kerosene lamp. The many schemes announced by the government have ensured that the house is littered with appliances which make his family’s life a little easier. So what should Senthil’s family do to lighten their footprint? Is that even a fair question?
The world is asking India to lower its share of carbon emissions, and there is not a doubt that Senthil’s family and many like his are adding to the carbon footprint. But Senthil’s family is probably focussed on replacing their wood-burning cookstove with a gas stove and hoping for fewer power cuts, and perhaps getting used to paying an electric bill.
The climate friendly actions to be taken here are to make the grid that serves Senthil and others like him less emitting and to charge rural households for their power while connecting them to a Direct Benefit Transfer scheme. This ensures they become conscious of their consumption, empowers them to demand better service (as they will be paying for it) while ensuring they are financially kept sound. Lastly, by making sure Utilities are paid allows them -- in theory -- to invest in infrastructure that could include greener power sources like solar.
Sunita lives in a tiny neighbourhood in Mumbai. Her flat has two bedrooms (one with an AC) and two bathrooms – both with heaters. Her mother cooks on a gas stove and their family has a fridge. The bulk of their electricity use is in the water heaters and AC, but their lighting system takes a fair share as well. There is plenty they can do to lower their power bill. First, they could replace their incandescent bulbs with LED lighting – that investment would payback in a few months (LED lights save substantially more power for the same level of lighting than even the ubiquitous CFL tube lights).
Next, they could change their AC unit into a more “energy efficient” unit. They could also look closely at the size of the unit relative to the size of the room. Switching all appliances to the most efficient category also has quick paybacks – depending on the usage. They could install a solar water heater or perhaps they could ask their apartment association to paint their terrace white or in any kind of reflective light. They could also plant trees – trees store carbon dioxide.
In the future, as the rural poor migrate and transform into the urban middle class, as the Senthils become the Sunitas, an important question will be how to make that shift Carbon Efficient? India has pledged to the world to cut the carbon intensity of her GDP by 35% by 2030. A good deal of the heavy lifting will come from increasingly powering the grid with solar/hydro/wind/natural gas/nuclear rather than coal. However, making the Senthils and Sunitas conscious of their Carbon footprint of their lives is essential – that’s what this column is about.
(Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The views expressed in the articles are those of the author.)
The next article in this series will appear on October 30.
Feedback and questions may be e-mailed to climaction2015@gmail.com
(Mridula Ramesh is the Executive Director of Sundaram Textiles. She is also a student and teacher of global warming.)
Keywords: Climaction, Green power, Carbon footprint, urban-rural divide
How segregation turns waste into money
We Indians are quite good at handling waste, relatively speaking. Most of us reuse stuff (the hand-me-down salwar being used as rag to wipe the kitchen counter), sell our newspapers (that manifest into their new avatars as tiny paper covers to hold groundnuts) and are careful about how much food we waste. But times are changing, and three emerging trends are likely to challenge our waste-credits.
One: there are a lot of us, and we are increasingly moving to cities which increases the quantity of waste and makes the dynamics of waste very different from what it is in smaller rural settlements. Second: the convenience and economics of plastic packaging make it increasingly ubiquitous in modern living. But plastic is very different from “wet” waste like produce, peels and sewage, and needs to be handled very differently. Lastly, we are becoming wealthier and changing our lifestyles. We consume more for starters. As food makes up a progressively smaller share of our earnings, we become more blasé about wasting more of it. This is only encouraged by enticing marketing campaigns that induce us to make impulsive purchases that translate into yet more waste.
Just how much waste are we talking about? In an earlier article, we saw that the total food waste in the world was a third of all the food produced, or about 1.3 billion tonnes a year; equivalent to junking 100,000 Taj Mahals. But waste from the household includes other forms of waste: there’s sewage (that Israel has managed to convert to a precious resource), there is food waste (rotten produce, peels and leftover food), packaging, paper in its various forms and specialty waste (consisting of medical, hazardous and e-waste). Consider the solid (non-sewage) waste generated daily in India’s metros: Delhi leads the pack at 8,500 tons per day, Mumbai comes second with 7,000 tons per day Calcutta and Bangalore follow at 5,000 tons each daily, while Chennai generates about 3,000 tons of waste a day. That’s 10.5 million tons (hard to imagine, isn’t it?) of garbage a year. That’s a lot of garbage. Most of this waste ends up in the landfill.
Why is this bad? Many reasons: first, it provides a great breeding ground for all kinds of pests, including mosquitoes. Given the suffering inflicted by the current dengue epidemic, that should be reason enough to manage our garbage better. There’s more. The liquid generated from solid waste, full of harmful chemicals, can seep into ground water and streams and poison us. The bad odour arising from rotting refuse pollutes the air and exacerbates asthma while the garbage lying around and in our landfills looks unsightly. Last but certainly not the least, is the unenviable plight of the rag pickers. They brave wounds and bruises from working in hazardous conditions and burns and cancer dealing with harmful substances that come with our waste. They deserve more than our pity. But this is a climate change column: what is the climate impact of waste?
Globally waste management accounts for ~3% of greenhouse gas emissions and landfills account for about half of that. So, is it really that big a deal? Well, yes. Because for one, India may not have enough gas to power its LPG-cylinders-for-all campaign, and here is a readymade source with a working technology, developed by the Bharat Atomic Research Centre, ready to provide substantial fuel to further that dream. For another, this is one of those relatively easy wins, where there is a working solution and plentiful other benefits that come with addressing the climate problem.
The good news is that there are plenty of people, Startups and NGOs, working on solving different bits of this problem. There is the humble raddiwala who picks our segregated waste newspapers from our doorstep. Bangalore has a thriving solid waste ecosystem. For instance, Saahas, a NGO-turned-Start up, offers a waste management service to large waste generators like corporates and apartment complexes. For a fee, it will collect your garbage, segregate it and make money out of it. There are others who collect excess food from wedding or other functions and distribute it to the poor. There are still others running energy-from-waste plants generating gas from segregated wet waste. But do you see one word repeat itself consistently in the different solutions? Segregation. This word, this act holds the alchemical key in turning waste to gold. The moment you mix wet waste with dry waste, you diminish any potential for a solution. But the second you segregate, you’re sitting on a pile of money in your trash cans. Next time, I want to walk you through a very personal experience, how we brought down the waste we sent into the corporation from our home.
(Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The views expressed in the articles are those of the author.)
The next article in this series will appear on November 27. Feedback and questions may be e-mailed to climaction2015@gmail.com)
Conservation begins at home
Statistics can be inhuman. It is difficult to fathom 10.5 million tons but much easier to figure out six kilos. So, the lessons learnt from bringing 6 kg of waste down to 800 grams can be applied to bringing down the 10.5 million tons of waste generated by India’s major cities. As mentioned in the last article, this is a personal story of reducing waste in our home.
We have several people living in our house. When we started our waste reduction program in July, we laid down a few rules -- First, to weigh and measure every bit of waste. Second, not to lie to ourselves. Let me use a diet analogy to explain this. “I’m trying everything but I just can’t.” My reply would be: “Losing weight is not fun. Don’t lie to yourself to prolong the agony.” The same works for waste management. If there is an uneaten takeaway tossed into the trash, weigh it. If there is a kozhumbu disaster in the kitchen, weigh it. If you have a birthday party, weigh all the used and thrown plates.
The third important point is to involve all the people at home to be part of the solution. That is the person who buys the groceries, one who cooks, the person who cleans (often, not always the same person), the children, everyone. Each presents a different angle, and typically, after a few free-for-all meetings, the truth begins to emerge. Fourth, to keep implementing solutions and then document those points that work. This will help to communicate better and celebrate the small successes.
So what happened? When we began our project, we were generating about 6 kg of waste every day! More than half, about 3.5 kg, of this was genuine food waste, what we labelled “Peel” – consisting of any fruit or vegetable peels or rotten produce. Another kg was excess/unused food – either from cooking or from our plates. And lastly, about 1.5 kg came from general waste such as newspapers, milk packets, packaging material etc.
A month into the project, we discovered that we had not included all the waste bins in the house. That added another 500 gm of general waste.
So our starting line was 6 kg of waste per day going into the landfill. This did not include the garden waste, as we had a compost pit for that. now in November, 4 months into project. Four months on in November now, our household generated waste has fallen to a little over 3.5 kg a day, a reduction of 40% from the beginning. More importantly, the amount we send out into the landfill now has reduced to little less than 800g per day, a reduction of over 85%.This means, just in the past month we prevented 156 kg of waste reaching the landfill from one house alone.
What did we do to achieve this? In the first month, we took no action. We just watched, weighed and noted. After a month, when everyone in the house knew that waste is important, we began to look for patterns that came through on high waste days. A big one was cooking more than was required. Earlier leftovers were repurposed. In today’s increasingly pressed-for-time lives, leftovers are often trashed. Another was not keeping the provisions visible and as a result we often bought what we already had at home. The third was impulse buying.
So we began to be more judicious about how much we cooked. We reorganized the kitchen to make the provisions stocked easily visible.
We became more watchful of the produce we bought. We began to segregate at source – this is mainly in the kitchen, so that “wet” and “dry” waste went into separate dustbins. This allows us to compost our food waste. Like many others, we too sell our newspapers, carton boxes and milk packet covers. A side benefit of all this is a reduction in our grocery bills.
Because we cook only what we need and are careful about our produce selection. Now our grocery bill is also down by 10 per cent! We are also trying a new composting solution. But we still have a long way to go. We can still improve on food waste but then we have just about taken our first step into a whole new world.
(Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The views expressed in the articles are those of the author.)
The next article in this series will appear on December 11, 2015
Feedback and questions may be e-mailed to climaction2015@gmail.com)
(Mridula Ramesh is the Executive Director of Sundaram Textiles. She is also a student and teacher of global warming.)
Understanding the consequences to our health in a warming world
In this article we turn to an important reason to understand and act on our changing climate: Our Health.
Let us group the consequences to our health from climate change into three categories. First, there are the direct consequences of a warmer climate: heat-related problems or health problems stemming from exposure to extreme events like storms or flooding
Next, there are the indirect consequences to “natural” ecosystems: for instance, how will a warmer and possibly wetter climate affect mosquitoes, and in turn, affect dengue epidemics? Last are the indirect impacts through social systems.
To understand these better, ask yourself: What if it were too hot to work in the fields, but, at the same time, working in the fields was the only job available to you? What if the yield from your fields was now too little to support your family, let alone to sell and fund your daughter’s education? What if you had to migrate to a cooler climate, but the cooler country was no longer accepting refugees? These are not theoretical questions in the future.
They are questions people are facing now. So, what are the direct consequences to our health from a warmer climate? Global warming. How do you feel when it is warmer than you would like it to be? A common answer would be “Irritable” or “Uncomfortable”
Scientifically, if our body temperatures rise above 38°C or 100.4°F, we begin to suffer from heat exhaustion, and our physical and mental functions begin to falter. At temperatures above 40.6°C, our organs begin to fail and the risk of death rises sharply.
This perhaps explains the 2,500 deaths that occurred this year in Andhra Pradesh, Telangana and Orissa as the temperature rose to 45-plus. One of the more robust findings by scientists is that such heat waves are going to become more common. But will it affect us all equally? Apparently not.This is where the concept of “vulnerability” comes in.
India is unfortunately situated in the climate change fallout. We are hot already, and getting hotter doesn’t do us much good. Contrast this with Canada’s situation: while getting hotter would terminally inconvenience the polar bears, it is broadly positive for the human population. For the rich Indian, the added heat will increase the air conditioning bills and restrict outdoor walks.
For a poor farmer working in the fields, the added heat could prove fatal. The 2003 heat wave in Europe primarily killed older people – another vulnerable section of the population. The last vulnerable group are children – whose smaller bodies and weaker immune systems leave them easy prey to infections.
We may conclude that the direct effects will fall hardest on our vulnerable: the poor, the women (we will see why in a later article), the old and the children.
The next direct health impact is the fallout from floods and storms. The recent Chennai floods provide a proximate example to understand what these might be. Over 400 people died from drowning and electrocution. As aspirations rise, more and more people will migrate into the cities, probably staying at the cheapest places. These are likely to be places that will be the first and worst affected during any flood. So a potent mix of increased populations at risk, an increased likelihood of natural disasters and a penchant to build over coping mechanisms like water bodies leaves us fully exposed to the disasters that befall us. Apart from the immediate deaths and injuries, diarrhoea and dengue soon follow. Countless buckets of bleach have been poured in Chennai to stem the infections, as overloaded hospitals and doctors deal with the influx.
Finally, there is the oft-ignored mental blow. When the excitement has faded, and the adrenalin rush from dealing with the existential crisis is gone, the reality that vacations and the “fun stuff” will have to be given up as appliances need to be replaced and homes rebuilt, will sink in. Possessions slowly paid for by a lifetime of work gone and replaced by a grey depression that comes with the understanding.
Our mental healthcare infrastructure is insufficient to cope with the coming mental health crisis. Tamil Nadu had 16,122 suicides in 2014 with only 300 psychiatrists to deal with the mental health of the state. We need an army of trained counsellors to cope with the problem.
This is a sombre picture, but will increasingly be a new reality. Forewarned is forearmed. Let us prepare ourselves.
(Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The views expressed in the articles are those of the author.)
The next article in this series will appear on January 8, 2016.
Feedback and questions may be e-mailed to climaction2015@gmail.com
(Mridula Ramesh is the Executive Director of Sundaram Textiles. She is also a student and teacher of global warming.)
The pain continued in my knees for several more weeks, but I had beaten the disease. I was fortunate.
Because dengue incidence has skyrocketed in India. Dengue is caused by a virus carried within an Aedes mosquito. The mosquito is infected by the virus when it sucks blood from a person infected with the virus. The mosquito then bites another person continuing the cycle of infection. Mosquitoes like warm, moist climates and breed in pools of water. Infections peak during and after a rainy spell.
Let us look at the two main signs of climate change and see how they impact this disease:
First, temperature. An increase in temperature has several ways of increasing Dengue prevalence: it increases the length of the dengue infectious season, it increases the geographic spread of Dengue, it allows for the virus to reproduce faster within the mosquito, shortens the incubation period and lastly allows for the mosquito to survive better which
increases its chances of biting (and infecting) more people. Also, a very hot atmosphere weakens our immune system making us easier prey to the disease.
Next, the alternating flood-drought scenario that comes along with climate change causes water to stagnate (made worse by rubbish clogging drains) forming ideal breeding grounds for mosquitoes. Also, water shortages in cities cause people to store water in containers - this also increases the breeding sites for mosquitoes.
So, while further modelling studies are required to understand precisely by how much dengue will go up in India in the coming decades due to a warming climate, we can safely say: it will go up by a lot.
That's not a pleasant thought.
First, the news of a vaccine recently released in Mexico is a very positive thing. Perhaps our domestic vaccine manufacturers can also join the race to make a cheap, effective vaccine.
Two, Water management needs to be put on a war footing. India has successfully managed her coal problems and laying out roads faster than predicted. We need to see that happens with water too.
Three, given that Dengue is going to become much more prevalent, we cannot hide from the problem. Singapore reported 11265 cases of Dengue in 2015. Compare this with the 90040 reported cases in India in 2015 with 200 times the population of Singapore and a much dirtier environment. This suggests rampant under-reporting - a fact confirmed off-the-record by most doctors.
Let us acknowledge there is a problem. Let us consider the possibility that it may get a lot worse. We can then begin to deal with it.
(Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The views expressed in the articles are those of the author.)
The next article in this series will appear on January 22, 2016.
Feedback and questions may be e-mailed to climaction2015@gmail.com
(Mridula Ramesh is the Executive Director of Sundaram Textiles. She is also a student and teacher of global warming.)
Leading scientists believe that climate change will impact human health through three “social-systems”: Nutrition, Occupational Health and lastly, Conflict and Migration.
Nutrition is how much and what quality of food we get to eat. How much nutrition we get is a function of our agricultural production, post-harvest food losses, food prices and access, socio-economic factors (such as whether the third girl child will receive her “fair” share) and diseases that affect nutrition.
Agricultural yields will fall steeply in hot countries in a business-as-usual scenario. This will mean that there is less food available locally. A hotter climate also means food will rot faster unless properly stored. This again means less food is available locally. It is estimated that 40 per cent of India’s vegetables and fruits rot post-harvest before reaching our plates. Food prices could increase as populations grow (and production falls in tropical countries) and food might need to be imported from temperate climates. This will also affect access: A poor farmer will have more access to locally grown crops rather than imported food. Diseases such as diarrhoea would increase in a flood-drought alternating climate, lowering any nourishment the food provides.
The World Bank says there are 60 million underweight children in India. This is a big problem.
Nutrition in early childhood and for a pregnant woman is critical: any malnutrition here affects brain development that has lifelong consequences for the child. Children who are malnourished in the womb or in their very early years perform worse than their better-nourished peers in school and are more likely to succumb to serious infections in childhood. Further, childhood malnutrition in India is likely because of infection or inappropriate feeding and caring practises in the first few years of life. This means the increased disease load that comes with the changing climate will add a double whammy to an already vulnerable group: poor children will have less access to food and a higher disease burden resulting in very poor nutrition.
A perhaps-non-intuitive action point is to encourage breast feeding. A common source of infection for babies is poorly sterilized feeding bottles. Breast feeding has the twin benefits of minimising infection risks and providing optimal nutrition. Another is to bring a midday meal scheme equivalent for toddlers.
The second social system to consider is Occupational Health: to understand this idea better, let us consider the lives of two people: Priya who works as a receptionist in a hotel in Mumbai and Prakash, who along with his family, works the fields growing cotton in Vidarbha. Fast forward 10 years. The temperature would be a little more than a degree warmer than it was in the past century. Water resources would very stressed with several of the groundwater aquifers running dry in the agricultural belts in India.
Sunita’s life has become harder in the past few years. Traffic is now so bad, and so many people have moved to Mumbai that she now has a solid two-hour uncomfortable commute. It’s also noticeably hotter. Due to the frequent flooding in Mumbai, the tourist and business traveller inflow has come down. Those who come prefer to take the last flight out, reducing the guests staying at Sunita’s hotel. So management is not very generous with salaries and is stricter with requirements. Still, the lobby is air-conditioned which makes for a welcome relief from the heat.
Prakash does not know how he will last out one more year. Many families in his village have left, trusting an unknown dream in a distant city. He has built farm ponds on his soil, uses drip irrigation and is meticulous in keeping up to date on the latest trends on growing cotton, but if the rain falls when it never has – in the harvest season when the fragile bolls of cotton are open to the skies, what can he do? It’s also getting hotter every year and working the fields is killing. Three women have died so far in this season because of heat exposure. He is not sure how to survive.
Half of India’s workforce works in agriculture. Agricultural work is back breaking, fully exposed to the elements – including the slowly climbing temperature. Several studies report that the loss of productivity has already occurred during the hottest and wettest months due to climate change. This will get worse in the coming decades. The only solution is to improve the skills of our people to move out of agriculture and create an environment that produces jobs for them. Moreover, one study indicates that in South East Asia half the afternoon work hours will be lost by 2050 due to a need for rest breaks.
The clarion call is clear: We need to move out jobs where productivity is dependent on physical labour and to weather-proof our working environments. This means educating our population fast and well. And creating millions of jobs to employ those smart graduates. Will India start to stand up?
(Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The views expressed in the articles are those of the author.
The next article in this series will appear on February 5.
Feedback and questions may be e-mailed to climaction2015@gmail.com
(Mridula Ramesh is the Executive Director of Sundaram Textiles. She is also a student and teacher of global warming.) Keywords: Climaction, Climate change, environment
AylanKurdi was three years old when he died. In death, he opened up the hearts of millions around the world and brought to bear the truth of the refugee crisis.
Aylan, a Syrian child, was born in the Euphrates valley. His family was driven out of Damascus in the bombing. His father worked as an illegal worker in Turkey for a few years while trying to legally immigrate to Canada where his sister lived. For whatever reasons (and there are many: his request for Canadian immigration was denied (which the Canadians later denied), he was a smuggler and his children, Aylan and Galib, did not have health insurance. The family boarded an illegal boating expedition to a Greek Island in September 2015. It was an overloaded boat, leaving at night to escape patrols, and there were no functioning life vests on board. Three years old Aylan drowned along with several other children in that trip.
Many hundreds drowned in the past year, many of them children, in trying to flee Turkey for the promised land of Europe.
In this case, they flee a land filled with bombing and destruction, the land of ISIS.
This is the third social system through which Climate Change impacts human health: Conflict and Migration.
Peter Gleick of the Pacific Institute writes an excellent paper on the subject. He writes that although there are several factors that eventually lead to the Syrian crisis as we know it today, climate change had a key role to play.
Syria is a dry country, receiving less than 250 mm of annual rainfall (to provide perspective: India, on average, receives more than 4 times that number per year). Another important source of water is the Euphrates river that flows into Syria from Turkey. But, in the early 90s, Turkey built a dam across the Euphrates river, an important source of water to Syria, resulting in a fall of water discharge into Syria from the river by a third. Moreover, Syria’s population grew from 3 million in 1950 to over 22 million in 2012, reducing the water availability per person to about 327 m3 per person. Hydrologists define any level below 500 m3/person as absolute scarcity. For comparison, the world had 6000 m3/person on average and India has about 1100 m3/person.
This parched land has little room to wiggle as far as water is concerned. Thus the changes that global warming brought pushed it over the edge. Remember that one of the trademark signs of climate change is the increased incidence of extreme events like floods and droughts? Well, the frequency and severity of droughts in the Mediterranean region (including Syria) have increased in the past 30 years. The worst was the severe 5-year drought that began in 2006 and is quoted as being the “worst long-term drought and most severe set of crop failures since agricultural civilizations began in the Fertile Crescent many millennia ago”. When you start hearing phrases like “worst ever” associated with climate phenomenon, you know that something very serious is at play. This drought combined with a poor water policy (essentially the over-exploitation of ground water similar to what is happening now in India) set off crop failures that affected 2-3 million people. It left a million people facing food insecurity. This in turn led to 1.5 million people, mostly dependent on farming, moving to cities and urban camps. The combination of lost livelihoods and a large group of unemployed young men congregated in crowded urban camps, provided a fertile breeding ground for the civil war that followed.
The world was aware of this in 2008: there were requests for help from the UN representative in Syria: “Please give us money to feed the people, to help rebuild their lives, so that they don’t come to the cities and create havoc.” The requests were denied.
Now seven years later, there are 4.3 million Syrian refugees. And ISIS.
But further droughts will push more and more marginal farmers out of their farmland. Where will they go? What if millions of Bangladeshis came into India? What if Indians and Chinese wanted to go to Europe and to Canada?
Aylan’s story is going to be repeated a million times over in the coming decades, unless we acknowledge the reality of climate change and take adaptive action on a war footing.
(Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The views expressed in the articles are those of the author.)
The next article in this series will appear on February 19, 2016.
Feedback and questions may be e-mailed to climaction2015@gmail.com
(Mridula Ramesh is the Executive Director of Sundaram Textiles. She is also a student and teacher of global warming.)
Keywords: Climaction, climate change
Women constitute almost 50 per cent of the human species. Yet, they are peculiarly vulnerable to the impacts of global warming. Why is it so?
As per the latest Census (2011), roughly 48% of India’s population is female – about 580 million of them. Given that women live longer, this shows a tilt, suggesting some systematic way of eliminating females from the population. The well-known practises of female foeticide and female infanticide remove millions of baby girls every year. So vulnerability begins at birth.
The vulnerability continues as the baby girls grows. She is often less educated: with attendance in school falling steeply as she enters puberty, especially in rural India. Thus, on average, she has already been placed on the “slower” track.
This vulnerability is compounded when she (and if she) enters the workforce. An overwhelming portion of urban women don’t work as they enter their marriage and child bearing years. A larger number of rural women continue to work, often as marginal workers. There are strong cultural and social factors at play. The latest census data is damning. The urban, educated woman works (outside the home) the least, while the Illiterate rural woman works the most. Given the costs of educating and marrying girls, cold economics perhaps explains the falling sex ratio amongst children in the past 10 years.
Moreover, for women who work, data from the World Bank suggest wages for women performing casual labour are 20% lower than those received for men and 20% lower for the same task.
This set of vulnerabilities is worsened by the changing climate. Consider this: almost three quarters of the working women in India work in agriculture. Falling agricultural yields and the mechanization of agriculture are twin threats to this large group. Also, this group has few alternates for work: either in the form of alternate rural employment (textiles is a notable exception) or the ability to migrate. What this large group will do in the coming decades is an important question of our times.
The second set of problems caused by climate change for women has to do with some of the roles that women perform: child and household care. As we saw in an earlier article, both the incidence of mosquito-borne diseases and the incidence of health problems related to floods (diarrhoea etc.) are set to rise. With children being a vulnerable group, child carers, who are overwhelmingly women, are set for bad time. They will have less time to work or to relax thus reducing their well-being. The collection of water is another burden on women, especially little girls, that is going to rise. As the incidence of drought increases, more and more girls will have to walk further each day to collect water – stealing time that could have been put to school or leisure.
One contributor to global warming on a local scale is the black smoke that emanates from cook stoves fuelled by solid fuels like wood or dung. The black smoke is said to cause warming in a local scale as well as cause tremendous health problems as the tiny particles in the smoke enter our lungs and wreak havoc. Across India, millions of households use such stoves contributing to over a million deaths a year. The bulk of this burden is borne by women who cook.
The last set of problems has to do with violence against women: dowry deaths rise when drought occurs. A study by Sekhri and Storeygard (2013) looks at data from 500+ districts in India over the past decade. Whenever rains fall by a standard deviation, or 240mm in a season, dowry deaths in that district rise by eight per cent. Studies show that domestic violence reports in the US increase by seven per cent for every degree C rise in temperature. With violence against women already making regular headlines, this is a risk we cannot afford to let rise. Another vulnerability has to do with nutrition: several studies show that as drought increases and the available nutrition available for a family falls, women often forego their share in such scenarios so that their families benefit, worsening their health in the process.
Let us understand, for most, power stems from money in our society today. To improve the position of women, this translates to ensuring they work and removing the social, psychological and economic barriers that prevent them from doing so. Given that the most harshly affected category of women are rural women, we need to explore avenues of employment for them. This could be through encouraging textile employment (already the largest non-agricultural employer of women in India) or it could be through preferential allocation in the NREGA. Next, simple vitamin supplements or protein powders will help improve the nutritional status of women, this could be provided through ration shops throughout the country. Another option is providing access to improved cook stoves. There are several companies and organizations already working on this front.
(Climaction is a fortnightly column that is published in MetroPlus Weekend on alternate Fridays. The views expressed in the articles are those of the author.)
The next article in this series will appear on March 4, 2016.
Feedback and questions may be e-mailed to climaction2015@gmail.com
(Mridula Ramesh is the Executive Director of Sundaram Textiles. She is also a student and teacher of global warming.)