The melting of the frozen soil in the world's northern latitudes could release trapped greenhouse gases (like methane) that could amplify climate change. How much global warming could trigger a meltdown of the world's permafrost? Learn more about this and other "climate tipping points" in a November 2009 report sponsored by Allianz and WWF. For more information, please visit: http://knowledge.allianz.com/en/globalissues/climate_change/climate_impacts/
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