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Wednesday, October 17, 2007

What is Climate Change?

What is climate change?

Climate change is caused by the persistent build-up of greenhouse gases such as Carbon Dioxide (CO2) in the Earth's atmosphere.

The more fossil fuel (oil, gas and coal) we burn for transportation or to generate energy, the more greenhouse gases we emit into the atmosphere, and the hotter our planet gets.

Today, our world is hotter than it has been in two thousand years. By the end of the century, if current trends continue, the global temperature will likely climb higher than at any time in the past two million years.

And the result of this rising temperature? Extreme weather events like irregular monsoons, rapidly recedingglaciers, fiercer storms, prolonged droughts, heat-waves, and worse.
All this together is called Climate Change. It's real, and it's here, even as you read this.

What will climate change do to you........

Just look around you. You don't have to be a scientist to notice that millions of people – many of them in India – are already at risk of losing their livelihoods. By the time your children are grown up, climate change could cause 150,000 additional deaths per year, with an increased risk of hunger, malaria, flooding and severe water shortages.

When all this happens, when the Earth itself is threatened, then all that lives on it is also threatened.And that includes you. Your children. And your children's children.Never before has humanity been forced to grapple with such an immense environmental crisis. If we do not take urgent and immediate action to stop global warming, the damage could become irreversible.

The world‘s glaciers are already melting at a frightening rate, and this is set to increase. This means that the rivers they feed will dry up in many parts of the world and this will seriously endanger water supplies. The Gangotri glacier is retreating at the rate of 34 metres per year. If it shrinks any faster, the Ganga could dry up, threatening the very survival of over 500 million people in this subcontinent.

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glaciers are alredy melting @ frightening rate and is set to means the rivers they feed will dry up in many parts of the world.and endanger water supplies.The Gangothri glacier is retreating at the rate of 34 metres per year.if it shrinks any faster,the ganga could dry up threating the very survival of over 500 million people in this subcontinentCoastal areas are the mostly densed areas of the world and the most threatened bcoz of sea level rise that global warming could cause.the heating of oceans and melting of glaciers and polar ice sheets,is predicted to raise the average sea level by over half-a-metre by next century.our biggest-cities Mumbai,Chennai and Kolakatta will be the first to go

Here are 6 simple things you can do and how much CO2 you’ll save doing them…

1. Replacing one regular incandescent light bulb with a CFL will save 150 pounds of CO2 a year.

2. Walk, cycle, car-pool or take public transport more often. You'll save one pound of CO2 for every mile you don’t drive!

3. You can save 2,400 pounds of CO2 every year by recycling just half of your household waste.

4. Keeping your tyres inflated properly can improve mileage by more than 3%. Every gallon of petrol saved keeps 20 pounds of CO2 out of the atmosphere!

5. You can save 1,200 pounds of CO2 if you cut down your garbage by 10%.

6. Simply turning off your TV, DVD player, stereo and computer when you’re not using them will save you thousands of pounds of CO2 a year.

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Elimination of Toxic Chemicals

Toxic chemicals in our environment threaten our rivers and lakes, our air, land, and oceans, and ultimately ourselves and our future.

The production, trade, use, and release of many synthetic chemicals is now widely recognised as a global threat to human health and the environment.

Yet, the world's chemical industries continue to produce and release thousands of chemical compounds every year, in most cases with none or very little testing and understanding of their impacts on people and the environment.
Scientists estimate that due to the presence of effluents in our rivers, toxic waste dumps in our fields, poisons in our groundwater, in the air we breathe, in the food we eat, all living species today carry at least 700 man-made chemical contaminants in their bodies. These chemicals are implicated in effects in living beings ranging from the gory to the subtle -from gross effects like cancers, deformed sex organs and hermaphroditism to hidden consequences such as falling sperm counts, aggressive behaviour and diminished intelligence.

Greenpeace India has been campaigning to highlight issues related to toxic products and processes (Chlorine Industry) toxic legacies (Bhopal), toxic trade (shipbreaking), toxic waste management and disposal, (Vapi, Eloor, Patancheru), and Corporate accountability (Kodaikanal). Our campaign strategy has focused on community concerns for environmental health of rivers (Periyar), lakes (Patancheru), forest (Kodaikanal), oceans (Alang) and health (toxic hotspots).
Using scientific analysis, epidemiological health studies, a strident communications strategy, non-violent direct actions, and lobbying the concerned authorities, Greenpeace India has successfully played a crucial role in informing society, building pressure on corporations and assisting the state and the judiciary in recognising the extent of the toxic problem and forced them to act.


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India's Green Revolution

The world's worst recorded food disaster happened in 1943 in British-ruled India. Known as the Bengal Famine, an estimated four million people died of hunger that year alone in eastern India (that included today's Bangladesh). The initial theory put forward to 'explain' that catastrophe was that there as an acute shortfall in food production in the area. However, Indian economist Amartya Sen (recipient of the Nobel Prize for Economics, 1998) has established that while food shortage was a contributor to the problem, a more potent factor was the result of hysteria related to World War II which made food supply a low priority for the British rulers. The hysteria was further exploited by Indian traders who hoarded food in order to sell at higher prices.Nevertheless, when the British left India four years later in 1947, India continued to be haunted by memories of the Bengal Famine. It was therefore natural that food security was a paramount item on free India's agenda. This awareness led, on one hand, to the Green Revolution in India and, on the other, legislative measures to ensure that businessmen would never again be able to hoard food for reasons of profit.However, the term "Green Revolution" is applied to the period from 1967 to 1978. Between 1947 and 1967, efforts at achieving food self-sufficiency were not entirely successful. Efforts until 1967 largely concentrated on expanding the farming areas. But starvation deaths were still being reported in the newspapers. In a perfect case of Malthusian economics, population was growing at a much faster rate than food production. This called for drastic action to increase yield. The action came in the form of the Green Revolution.The term "Green Revolution" is a general one that is applied to successful agricultural experiments in many Third World countries. It is NOT specific to India. But it was most successful in India.

There were three basic elements in the method of the Green Revolution:
(1) Continued expansion of farming areas;
(2) Double-cropping existing farmland;
(3) Using seeds with improved genetics.
Continued expansion of farming areas
As mentioned above, the area of land under cultivation was being increased right from 1947. But this was not enough in meeting with rising demand. Other methods were required. Yet, the expansion of cultivable land also had to continue. So, the Green Revolution continued with this quantitative expansion of farmlands. However, this is NOT the most striking feature of the Revolution.
Double-cropping existing farmland:
Double-cropping was a primary feature of the Green Revolution. Instead of one crop season per year, the decision was made to have two crop seasons per year. The one-season-per-year practice was based on the fact that there is only natural monsoon per year. This was correct. So, there had to be two "monsoons" per year. One would be the natural monsoon and the other an artificial 'monsoon.'
The artificial monsoon came in the form of huge irrigation facilities. Dams were built to arrest large volumes of natural monsoon water which were earlier being wasted. Simple irrigation techniques were also adopted.
Using seeds with superior genetics:
This was the scientific aspect of the Green Revolution. The Indian Council for Agricultural Research (which was established by the British in 1929 but was not known to have done any significant research) was re-organized in 1965 and then again in 1973. It developed new strains of high yield value (HYV) seeds, mainly wheat and rice but also millet and corn. The most noteworthy HYV seed was the K68 variety for wheat. The credit for developing this strain goes to Dr. M.P. Singh who is also regarded as the hero of India's Green revolution.
Statistical Results of the Green Revolution
(1)The Green Revolution resulted in a record grain output of 131 million tons in 1978-79. This established India as one of the world's biggest agricultural producers. No other country in the world which attempted the Green Revolution recorded such level of success. India also became an exporter of food grains around that time.

(2)Yield per unit of farmland improved by more than 30 per cent between 1947 (when India gained political independence) and 1979 when the Green Revolution was considered to have delivered its goods.

(3)The crop area under HYV varieties grew from seven per cent to 22 per cent of the total cultivated area during the 10 years of the Green Revolution. More than 70 per cent of the wheat crop area, 35 per cent of the rice crop area and 20 per cent of the millet and corn crop area, used the HYV seeds.
Economic results of the Green Revolution
(1)Crop areas under high-yield varieties needed more water, more fertilizer, more pesticides, fungicides and certain other chemicals. This spurred the growth of the local manufacturing sector. Such industrial growth created new jobs and contributed to the country's GDP.

(2)The increase in irrigation created need for new dams to harness monsoon water. The water stored was used to create hydro-electric power. This in turn boosted industrial growth, created jobs and improved the quality of life of the people in villages.

(3)India paid back all loans it had taken from the World Bank and its affiliates for the purpose of the Green Revolution. This improved India's creditworthiness in the eyes of the lending agencies.

(4)Some developed countries, especially Canada, which were facing a shortage in agricultural labour, were so impressed by the results of India's Green Revolution that they asked the Indian government to supply them with farmers experienced in the methods of the Green Revolution. Many farmers from punjab and haryana states in northern India were thus sent to Canada where they settled (That's why Canada today has many Punjabi-speaking citizens of Indian origin). These people remitted part of their incomes to their relatives in India. This not only helped the relatives but also added, albeit modestly, to India's foreign exchange earnings.
Sociological results of the Green Revolution:
The Green Revolution created plenty of jobs not only for agricultural workers but also industrial workers by the creation of lateral facilities such as factories and hydro-electric power stations as explained above.
Political results of the Green Revolution:
(1)India transformed itself from a starving nation to an exporter of food. This earned admiration for India in the comity of nations, especially in the Third World.

(2)The Green Revolution was one factor that made Mrs.Indira Gandhi(1917-84) and her party, the INC, a very powerful political force in India (it would however be wrong to say that it was the only reason).
Limitations of the Green Revolution:
(1)Even today, India's agricultural output sometimes falls short of demand. The Green Revolution, howsoever impressive, has thus NOT succeeded in making India totally and permanently self-sufficient in food. In 1979 and 1987, India faced severe drought conditions due to poor monsoon; this raised questions about the whether the Green Revolution was really a long-term achievement. In 1998, India had to import onions. Last year, India imported sugar.

However, in today's globalised economic scenario, 100 per cent self-sufficiency is not considered as vital a target as it was when the world political climate was more dangerous due to the Cold War.

(2)India has failed to extend the concept of high-yield value seeds to all crops or all regions. In terms of crops, it remain largely confined to foodgrains only, not to all kinds of agricultural produce. In regional terms, only punjab and haryana states showed the best results of the Green Revolution. The eastern plains of the River Ganges in west bengal state also showed reasonably good results. But results were less impressive in other parts of India.

(3)Nothing like the Bengal Famine can happen in India again. But it is disturbing to note that even today, there are places like Kalahandi (in India's eastern state of Orissa) where famine-like conditions have been existing for many years and where some starvation deaths have also been reported. Of course, this is due to reasons other than availability of food in India, but the very fact that some people are still starving in India (whatever the reason may be), brings into question whether the Green Revolution has failed in its overall social objectives though it has been a resounding success in terms of agricultural production.

(4)The Green Revolution cannot therefore be considered to be a 100 percent success.

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