The new black

Soot is even worse for the climate than was previously thought

 Published in Economist, Jan 19th 2013 |From the print edition

SOOT—also known as black carbon—heats up the atmosphere because it absorbs sunlight. Black things do. That is basic physics. But for years the institutions that focus on climate policy have played down the role of pollutants such as black carbon that stay in the atmosphere for a short time, and concentrated on carbon dioxide, which, once generated, tends to remain there. That may soon change.

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