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Black Carbon: A Science/Policy Primer

Author(s): Bachmann J

Published: December, 2009

Publisher: Pew Center on Global Climate Change

Tags: Short-Lived Climate Forcers

URL: http://www.pewclimate.org/docUploads/black-carbon-12-16-09.pdf

Abstract: Over the last decade, a growing body of evidence indicates that soot and smoke from incomplete combustion are major contributors to climate change. Black carbon, a soot component, is a potent climate driver that absorbs sunlight in the atmosphere, changes rainfall patterns, and when deposited on snow and ice, accelerates melting. In addition, soot can cause direct effects on health and agriculture. Climate and other effects of soot are magnified in broad regions where the strongest source emissions occur, but transported soot is also a major concern in the Arctic. The short atmospheric lifetime of soot particles also means that emissions reductions produce nearly immediate results, in contrast to most greenhouse gases (GHGs).


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