Arctic permafrost is melting faster than predicted
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"Arctic permafrost is melting faster than predicted " — Michael Slezak — New Scientist — November 28, 2012
We may be closer to a major climate tipping point than we knew. Earth's permafrost – frozen soil that covers nearly a quarter of the northern hemisphere and traps vast amounts of carbon – may be melting faster than thought and releasing more potent greenhouse gasses.
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