Crops | VOL. 9, ISSUE 53, March-April 2009 |

ABC, Climate Change and Reduced Rice Harvests in India

Concerns about climate change continue to rise, despite our limited ability to make precise assessments of its impact on the economic and/or social environment. This is partly due to the complexity of chemical and physical processes at various scales, but also due to confounding factors from other changes in the environment such as air pollution. The combined effects from atmospheric brown clouds (ABC), and of the global increase in greenhouse gas (GHG) concentrations are good examples of such processes. ABC block a part of the incoming solar radiation and thereby reduce direct warming effects from GHG. Climate change is an ever more serious issue for South Asia, particularly for the agricultural sector where both warming and reduced water availability may severely harm crop productivity. It is crucial to note that even a small change in climate may result in high social vulnerability of those dependent upon agriculture for their survival...

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