National Geographic News, Reporting Your World Daily

Thursday, October 28, 2010

Photo: "Brown Clouds" Contribute to Himalaya Glacier Melt


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A brown haze filled with heat-absorbing soot floats over the Indian subcontinent, as seen in this artist's illustration.

A new study shows that these regional brown clouds can warm the lower atmosphere just as much as greenhouse gases.

Image by Nicolle Rager Fuller, National Science Foundation