http://phenomena.nationalgeographic.com/2013/01/17/the-sooty-greenhouse-my-new-story-for-yale-environment-360/ A science salon hosted by National Geographic Magazine Fri, 24 May 2013 23:20:30 +0000 hourly 1 http://wordpress.org/?v=3.5.2-alpha http://phenomena.nationalgeographic.com/2013/01/17/the-sooty-greenhouse-my-new-story-for-yale-environment-360/#comment-38871 Pat MacEwen Sat, 19 Jan 2013 05:11:19 +0000 http://phenomena.nationalgeographic.com/?p=150641#comment-38871 I suspect soot is so puzzling because its effects are contradictory. It increases some things and reduces others. More soot in the air reduces insolation, for example, producing a net effect on global warming that is hard to quantify.

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