Crack patterns in Arctic permafrost as viewed from a helicopter. Credit: Brocken Inaglory/cc by 3.0
IPS – Thawing Permafrost May Be “Huge Factor” in Global Warming | Inter Press Service: "UXBRIDGE, Canada, Feb 14 2013 (IPS) - Thawing permafrost is emitting more climate-heating carbon faster than previously realised. Scientists have now learned that when the ancient carbon locked in the ice thaws and is exposed to sunlight, it turns into carbon dioxide 40 percent faster."
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