Source: Nature Geoscience–Article posted by robertscribbler -Scribbling for economic, social and environmental justice blog

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A recent paper in Nature Geoscience has shown that human caused warming could pump enough methane out of the Arctic tundra to raise the Earth’s temperature by between .4 and 1.5 degrees Fahrenheit. The paper, entitled Significant contribution to climate warming from the permafrost carbon feedback, showed that between 6 and 44 percent of all permafrost carbon could be emitted by 2100.

Since there’s more carbon in the permafrost than what has been historically emitted via fossil fuels, this number is large and very significant. The result of such an emission, even on the lower end, would be a significant contribution from nature to an already difficult to deal with man-made warming.

Research indicated that carbon emissions would be equal to between 40 and 100 additional parts per million CO2. However, a substantial portion of this increase would, initially, be methane, which, as a greenhouse gas, is 25 to…

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