Black carbon found to have warming effect, but significance still uncertain

by Julie Walsh on April 15, 2008

Black carbon, the stuff that gives soot its dirty color, could be the second most important contributor to climate change after carbon dioxide and a key to preventing warming, at least in the short-run, a new study suggests…Their estimates are well above those in the most recent report from the Intergovernmental Panel on Climate Change and suggest that black carbon has a bigger warming effect than previously thought.

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