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Researchers Predict Permafrost Thaw Will Intensify Climate Change More Quickly Than Previously Thought; Melting of Greenland Icesheet Could Drive More Water Than Previously Thought to North American Northeast

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As areas with permafrost thaw and more old carbon is released, the carbon balance changes. Permafrost thaw will make potentially significant contributions to atmospheric concentrations of carbon more rapidly that previously thought, according to a new study published in the 28 May issue of the journal Nature. Permafrost.

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Study Finds East Siberian Arctic Shelf Showing Instability and Widespread Venting of the GHG Methane; Releases May Be Much Larger and Faster Than Anticipated

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Methane is a greenhouse gas more than 30 times more potent than carbon dioxide. These findings do change our view of the vulnerability of the large sub-sea permafrost carbon reservoir on the ESAS; the permafrost “lid” is clearly perforated, and sedimentary CH 4 is escaping to the atmosphere. The permafrost under the ESAS—a 2.1

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