Deprecated (16384)CORE/src/Core/functions.php , line 311 ]Code Context
trigger_error ( $message , E_USER_DEPRECATED );
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Cake\Http\Server::run() - CORE/src/Http/Server.php, line 98 Deprecated (16384)CORE/src/Core/functions.php , line 311 ]Code Context
trigger_error ( $message , E_USER_DEPRECATED );
}
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<title>
LATEST NEWS UPDATES | Green Revolution's diet of big carbon savings by Richard Black </title>
<meta name="description" content="
The revolution of the 1960s saved decades worth of greenhouse gas emissions.
The Green Revolution of the 1960s raised crop yields and cut hunger — and also saved decades worth of greenhouse gas emissions, a study concludes. U.S. researchers found..."/>
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The revolution of the 1960s saved decades worth of greenhouse gas emissions.
The Green Revolution of the 1960s raised crop yields and cut hunger — and also saved decades worth of greenhouse gas emissions, a study concludes. U.S. researchers found..." />
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<h1 class="cat-box-title">Green Revolution's diet of big carbon savings by Richard Black</h1>
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Published on</span><span class="text-date"> Jun 17, 2010</span>
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<p align="justify"><font ></font></p><p align="justify"><font ><em>The revolution of the 1960s saved decades worth of greenhouse gas emissions. </em></font></p><p align="justify"><font >The Green Revolution of the 1960s raised crop yields and cut hunger — and also saved decades worth of greenhouse gas emissions, a study concludes. U.S. researchers found cumulative global emissions since 1850 would have been one third as much again without the Green Revolution's higher yields.</font></p><p align="justify"><font >Although modern farming uses more energy and chemicals, much less land needs to be cleared. The study is published in Proceedings of the National Academy of Sciences.</font></p><p align="justify"><font >“Converting a forest or some scrubland to an agricultural area causes a lot of natural carbon in that ecosystem to be oxidised and lost to the atmosphere,” said Steven Davis, from the Carnegie Institution's Department of Global Ecology at Stanford University in California.</font></p><p align="justify"><font >“What our study shows is that these indirect impacts from converting land to agriculture outweigh the direct emissions that come from the modern, intensive style of agriculture.”</font></p><p align="justify"><font >The researchers constructed alternative scenarios for how global society might have developed since the 1960s had the new, high-yielding Green Revolution varieties of rice, maize and other crops that raised crop yields in Asia and South America never existed. These new varieties turned countries such as India, which imported food in the best of times and needed emergency aid in the worst, into major exporters.</font></p><p align="justify"><font >Without the new crops — but with the growth in the human population and all the other socio-economic trends seen since the 1960s — feeding the world at current levels would mean the use of more than twice as much land as is currently used for agriculture, the researchers found.</font></p><p align="justify"><font >Farming this way would have required less energy and use of chemicals such as fertilisers, whose production involves emissions of CO {-2} and whose use generates nitrous oxide, another greenhouse gas. However, additional emissions from the extra land clearance, releasing carbon stored in trees and soil, would have been the more important factor by far.</font></p><p align="justify"><font >Meeting extra food demand this way would have released about 160 Gigatonnes (billion tonnes) of carbon (GtC) over the decades — which, the researchers note, “corresponds to 34 per cent of the total 478 GtC emitted by humans between 1850 and 2005.”</font></p><p align="justify"><font >“That's about 20 years of fossil fuel burning at present rates,” observed Dr. Davis.</font></p><p align="justify"><font ><em>Modern gains</em></font></p><p align="justify"><font >Modern intensive agriculture is often criticised over its relatively heavy use of chemicals, which can impact insects, larger animals and plant life in the vicinity of the farm. In addition, the run-off of excess fertilizer into rivers and lakes can generate blooms of algae and “dead zones” of water where nothing can survive.</font></p><p align="justify"><font >However, strictly from the point of view of greenhouse gas emissions, intensive farming appears to be significantly the better option.</font></p><p align="justify"><font >“Our results dispel the notion that industrial agricultural with its petrochemicals is inherently worse for the climate than a more ‘old-fashioned' way of doing things,” said Dr. Davis.</font></p><p align="justify"><font >He and his team suggest that policymakers keen to reduce greenhouse gas emissions should look towards further increases in crop yields, which they say might be more economical than other innovations.</font></p><p align="justify"><font >Existing research shows that curbing production of meat — which is an inefficient user of land and water — would by itself have some impact on emissions, though by precisely how much is debated.</font></p><p align="justify"><font ><em>— © BBC News/Distributed by the New York Times Syndicate </em></font></p>
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<br><a href="http://www.hindu.com/2010/06/17/stories/2010061762390900.htm " class="re" target="_blank">The Hindu, 17 June, 2010, http://www.hindu.com/2010/06/17/stories/2010061762390900.htm </a><div class="clear"></div>
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LATEST NEWS UPDATES | Green Revolution's diet of big carbon savings by Richard Black </title>
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The revolution of the 1960s saved decades worth of greenhouse gas emissions.
The Green Revolution of the 1960s raised crop yields and cut hunger — and also saved decades worth of greenhouse gas emissions, a study concludes. U.S. researchers found..."/>
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<p align="justify"><font ></font></p><p align="justify"><font ><em>The revolution of the 1960s saved decades worth of greenhouse gas emissions. </em></font></p><p align="justify"><font >The Green Revolution of the 1960s raised crop yields and cut hunger — and also saved decades worth of greenhouse gas emissions, a study concludes. U.S. researchers found cumulative global emissions since 1850 would have been one third as much again without the Green Revolution's higher yields.</font></p><p align="justify"><font >Although modern farming uses more energy and chemicals, much less land needs to be cleared. The study is published in Proceedings of the National Academy of Sciences.</font></p><p align="justify"><font >“Converting a forest or some scrubland to an agricultural area causes a lot of natural carbon in that ecosystem to be oxidised and lost to the atmosphere,” said Steven Davis, from the Carnegie Institution's Department of Global Ecology at Stanford University in California.</font></p><p align="justify"><font >“What our study shows is that these indirect impacts from converting land to agriculture outweigh the direct emissions that come from the modern, intensive style of agriculture.”</font></p><p align="justify"><font >The researchers constructed alternative scenarios for how global society might have developed since the 1960s had the new, high-yielding Green Revolution varieties of rice, maize and other crops that raised crop yields in Asia and South America never existed. These new varieties turned countries such as India, which imported food in the best of times and needed emergency aid in the worst, into major exporters.</font></p><p align="justify"><font >Without the new crops — but with the growth in the human population and all the other socio-economic trends seen since the 1960s — feeding the world at current levels would mean the use of more than twice as much land as is currently used for agriculture, the researchers found.</font></p><p align="justify"><font >Farming this way would have required less energy and use of chemicals such as fertilisers, whose production involves emissions of CO {-2} and whose use generates nitrous oxide, another greenhouse gas. However, additional emissions from the extra land clearance, releasing carbon stored in trees and soil, would have been the more important factor by far.</font></p><p align="justify"><font >Meeting extra food demand this way would have released about 160 Gigatonnes (billion tonnes) of carbon (GtC) over the decades — which, the researchers note, “corresponds to 34 per cent of the total 478 GtC emitted by humans between 1850 and 2005.”</font></p><p align="justify"><font >“That's about 20 years of fossil fuel burning at present rates,” observed Dr. Davis.</font></p><p align="justify"><font ><em>Modern gains</em></font></p><p align="justify"><font >Modern intensive agriculture is often criticised over its relatively heavy use of chemicals, which can impact insects, larger animals and plant life in the vicinity of the farm. In addition, the run-off of excess fertilizer into rivers and lakes can generate blooms of algae and “dead zones” of water where nothing can survive.</font></p><p align="justify"><font >However, strictly from the point of view of greenhouse gas emissions, intensive farming appears to be significantly the better option.</font></p><p align="justify"><font >“Our results dispel the notion that industrial agricultural with its petrochemicals is inherently worse for the climate than a more ‘old-fashioned' way of doing things,” said Dr. Davis.</font></p><p align="justify"><font >He and his team suggest that policymakers keen to reduce greenhouse gas emissions should look towards further increases in crop yields, which they say might be more economical than other innovations.</font></p><p align="justify"><font >Existing research shows that curbing production of meat — which is an inefficient user of land and water — would by itself have some impact on emissions, though by precisely how much is debated.</font></p><p align="justify"><font ><em>— © BBC News/Distributed by the New York Times Syndicate </em></font></p>
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<br><a href="http://www.hindu.com/2010/06/17/stories/2010061762390900.htm " class="re" target="_blank">The Hindu, 17 June, 2010, http://www.hindu.com/2010/06/17/stories/2010061762390900.htm </a><div class="clear"></div>
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LATEST NEWS UPDATES | Green Revolution's diet of big carbon savings by Richard Black </title>
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The revolution of the 1960s saved decades worth of greenhouse gas emissions.
The Green Revolution of the 1960s raised crop yields and cut hunger — and also saved decades worth of greenhouse gas emissions, a study concludes. U.S. researchers found..."/>
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<h1 class="cat-box-title">Green Revolution's diet of big carbon savings by Richard Black</h1>
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Published on</span><span class="text-date"> Jun 17, 2010</span>
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<p align="justify"><font ></font></p><p align="justify"><font ><em>The revolution of the 1960s saved decades worth of greenhouse gas emissions. </em></font></p><p align="justify"><font >The Green Revolution of the 1960s raised crop yields and cut hunger — and also saved decades worth of greenhouse gas emissions, a study concludes. U.S. researchers found cumulative global emissions since 1850 would have been one third as much again without the Green Revolution's higher yields.</font></p><p align="justify"><font >Although modern farming uses more energy and chemicals, much less land needs to be cleared. The study is published in Proceedings of the National Academy of Sciences.</font></p><p align="justify"><font >“Converting a forest or some scrubland to an agricultural area causes a lot of natural carbon in that ecosystem to be oxidised and lost to the atmosphere,” said Steven Davis, from the Carnegie Institution's Department of Global Ecology at Stanford University in California.</font></p><p align="justify"><font >“What our study shows is that these indirect impacts from converting land to agriculture outweigh the direct emissions that come from the modern, intensive style of agriculture.”</font></p><p align="justify"><font >The researchers constructed alternative scenarios for how global society might have developed since the 1960s had the new, high-yielding Green Revolution varieties of rice, maize and other crops that raised crop yields in Asia and South America never existed. These new varieties turned countries such as India, which imported food in the best of times and needed emergency aid in the worst, into major exporters.</font></p><p align="justify"><font >Without the new crops — but with the growth in the human population and all the other socio-economic trends seen since the 1960s — feeding the world at current levels would mean the use of more than twice as much land as is currently used for agriculture, the researchers found.</font></p><p align="justify"><font >Farming this way would have required less energy and use of chemicals such as fertilisers, whose production involves emissions of CO {-2} and whose use generates nitrous oxide, another greenhouse gas. However, additional emissions from the extra land clearance, releasing carbon stored in trees and soil, would have been the more important factor by far.</font></p><p align="justify"><font >Meeting extra food demand this way would have released about 160 Gigatonnes (billion tonnes) of carbon (GtC) over the decades — which, the researchers note, “corresponds to 34 per cent of the total 478 GtC emitted by humans between 1850 and 2005.”</font></p><p align="justify"><font >“That's about 20 years of fossil fuel burning at present rates,” observed Dr. Davis.</font></p><p align="justify"><font ><em>Modern gains</em></font></p><p align="justify"><font >Modern intensive agriculture is often criticised over its relatively heavy use of chemicals, which can impact insects, larger animals and plant life in the vicinity of the farm. In addition, the run-off of excess fertilizer into rivers and lakes can generate blooms of algae and “dead zones” of water where nothing can survive.</font></p><p align="justify"><font >However, strictly from the point of view of greenhouse gas emissions, intensive farming appears to be significantly the better option.</font></p><p align="justify"><font >“Our results dispel the notion that industrial agricultural with its petrochemicals is inherently worse for the climate than a more ‘old-fashioned' way of doing things,” said Dr. Davis.</font></p><p align="justify"><font >He and his team suggest that policymakers keen to reduce greenhouse gas emissions should look towards further increases in crop yields, which they say might be more economical than other innovations.</font></p><p align="justify"><font >Existing research shows that curbing production of meat — which is an inefficient user of land and water — would by itself have some impact on emissions, though by precisely how much is debated.</font></p><p align="justify"><font ><em>— © BBC News/Distributed by the New York Times Syndicate </em></font></p>
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LATEST NEWS UPDATES | Green Revolution's diet of big carbon savings by Richard Black
Green Revolution's diet of big carbon savings by Richard Black
Jun 17, 2010
Jun 17, 2010
The revolution of the 1960s saved decades worth of greenhouse gas emissions.
The Green Revolution of the 1960s raised crop yields and cut hunger — and also saved decades worth of greenhouse gas emissions, a study concludes. U.S. researchers found cumulative global emissions since 1850 would have been one third as much again without the Green Revolution's higher yields.
Although modern farming uses more energy and chemicals, much less land needs to be cleared. The study is published in Proceedings of the National Academy of Sciences.
“Converting a forest or some scrubland to an agricultural area causes a lot of natural carbon in that ecosystem to be oxidised and lost to the atmosphere,” said Steven Davis, from the Carnegie Institution's Department of Global Ecology at Stanford University in California.
“What our study shows is that these indirect impacts from converting land to agriculture outweigh the direct emissions that come from the modern, intensive style of agriculture.”
The researchers constructed alternative scenarios for how global society might have developed since the 1960s had the new, high-yielding Green Revolution varieties of rice, maize and other crops that raised crop yields in Asia and South America never existed. These new varieties turned countries such as India, which imported food in the best of times and needed emergency aid in the worst, into major exporters.
Without the new crops — but with the growth in the human population and all the other socio-economic trends seen since the 1960s — feeding the world at current levels would mean the use of more than twice as much land as is currently used for agriculture, the researchers found.
Farming this way would have required less energy and use of chemicals such as fertilisers, whose production involves emissions of CO {-2} and whose use generates nitrous oxide, another greenhouse gas. However, additional emissions from the extra land clearance, releasing carbon stored in trees and soil, would have been the more important factor by far.
Meeting extra food demand this way would have released about 160 Gigatonnes (billion tonnes) of carbon (GtC) over the decades — which, the researchers note, “corresponds to 34 per cent of the total 478 GtC emitted by humans between 1850 and 2005.”
“That's about 20 years of fossil fuel burning at present rates,” observed Dr. Davis.
Modern gains
Modern intensive agriculture is often criticised over its relatively heavy use of chemicals, which can impact insects, larger animals and plant life in the vicinity of the farm. In addition, the run-off of excess fertilizer into rivers and lakes can generate blooms of algae and “dead zones” of water where nothing can survive.
However, strictly from the point of view of greenhouse gas emissions, intensive farming appears to be significantly the better option.
“Our results dispel the notion that industrial agricultural with its petrochemicals is inherently worse for the climate than a more ‘old-fashioned' way of doing things,” said Dr. Davis.
He and his team suggest that policymakers keen to reduce greenhouse gas emissions should look towards further increases in crop yields, which they say might be more economical than other innovations.
Existing research shows that curbing production of meat — which is an inefficient user of land and water — would by itself have some impact on emissions, though by precisely how much is debated.
— © BBC News/Distributed by the New York Times Syndicate
The Hindu, 17 June, 2010, http://www.hindu.com/2010/06/17/stories/2010061762390900.htm
Published on Jun 17, 2010
Modified on Jun 17, 2010
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