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gochar

We have discussed this ample times. Unfortunately, our society’s will and political will is weakest in the history. We must stop all western agriculture practices immediately and go back to roots. It is dangerous idea to enforce migration of agriculture belt population to cities for so called virtual GDP growth. Destructive.

Read more on it. This is western view so there is now cow here. Do read this old article to realize why cow plays critical role in climate recovery formula.

Gau Gavya and Gau-Raksha


Research


Improving soil quality can slow global warming

http://advances.sciencemag.org/content/4/8/eaaq0932

Removal of atmospheric carbon dioxide (CO2) combined with emission reduction is necessary to keep climate warming below the internationally agreed upon 2°C target. Soil organic carbon sequestration through agricultural management has been proposed as a means to lower atmospheric CO2 concentration, but the magnitude needed to meaningfully lower temperature is unknown. We show that sequestration of 0.68 Pg C year−1 for 85 years could lower global temperature by 0.1°C in 2100 when combined with a low emission trajectory [Representative Concentration Pathway (RCP) 2.6]. This value is potentially achievable using existing agricultural management approaches, without decreasing land area for food production. Existing agricultural mitigation approaches could lower global temperature by up to 0.26°C under RCP 2.6 or as much as 25% of remaining warming to 2°C. This declines to 0.14°C under RCP 8.5. Results were sensitive to assumptions regarding the duration of carbon sequestration rates, which is poorly constrained by data. Results provide a framework for the potential role of agricultural soil organic carbon sequestration in climate change mitigation.


Low-tech ways of improving soil quality on farms and rangelands worldwide could pull significant amounts of carbon out of the atmosphere and slow the pace of climate change, according to a new UC  Berkeley study.

The researchers found that well-established agricultural management practices such as planting cover crops, optimizing grazing and sowing legumes on rangelands, if instituted globally, could capture enough carbon from the atmosphere and store it in the soil to make a significant contribution to international global warming targets.

Their initial aim was to determine if such practices could reduce global temperatures at least 0.1 degree Celsius (0.18 degrees Fahrenheit). This is one-tenth of the Intergovernmental Panel on Climate Change’s goal of limiting the average global temperature increase between now and the year 2100 to 1 degree Celsius (1.8ºF), or 2 above temperatures before the industrial revolution.

When combined with aggressive carbon emission reductions – the best scenario for limiting warming from climate change – the study found that improved agricultural management could reduce global temperatures 0.26 degrees Celsius – nearly half a degree Fahrenheit – by 2100.

“As someone who has been working on carbon sequestration for a long time, I have always had this question in the back of my mind, ‘Will sequestration in soils make a difference with climate change at a global scale?’ ” said study senior author Whendee Silver, a professor of environmental science, policy and management at UC Berkeley. “We found that there are a wide range of practices deployable on a large scale that could have a detectable worldwide impact. A big take-home message is that we know how to do this, it is achievable.”

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