by Jeremy Elton Jacquot, Los Angeles on 08. 2.07
TreeHugger
Although previous research had seemed to indicate that aerosols could create a general cooling effect in the atmosphere — thus helping mitigate the effect of global warming — a new study has revealed that they may in fact warm it just as much as greenhouse gases. In fact, these “brown clouds” — soot-filled aerosol clouds — have been increasing atmospheric warming over India by about 50%.
According to the study’s lead author, Veerabhadran Ramanathan of the Scripps Institution of Oceanography in San Diego, the brown clouds could cover the North Indian Ocean, an area close to that of the continental U.S., and their haze could be up to 2 miles (3 km) thick.
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