Climate change could melt the top 11 feet of Alaska permafrost by the end of the century, according to a new study.
"If that much near-surface permafrost thaws, it could release considerable amounts of greenhouse gases into the atmosphere, and that could amplify global warming," said lead author David Lawrence, with the National Center for Atmospheric Research. "We could be underestimating the rate of global temperature increase."
(Source: AP)
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