Global warming The new black

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
[...]
Source:
http://www.ezonearticle.com/2013/01/18/global-warming-the-new-black/