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terça-feira, 2 de agosto de 2011

GLOBAL WARMING SET FIRE TO THE TUNDRA IN ALASKA!!!



A wildfire that burned over 400 square miles of Alaska tundra in the scorching summer of 2007 poured as much carbon into the atmosphere as the entire Arctic normally absorbs each year, according to a new study in the scientific journal Nature.
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http://www.scientificamerican.com/article.cfm?id=huge-2007-tundra-fire-seen-as-omino&WT.mc_id=SA_emailfriend

© 2011 Scientific American, a division of Nature America, Inc. All Rights Reserved.

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