For the past decade, much of the focus in the Arctic has centered on the rate at which ice is melting and the ecological, social, and economic impacts of that melting. In a new study, researchers at the University of North Carolina at Chapel Hill reveal that carbon that has been stored in the frozen tundra for thousands of years is creeping up to the surface. This newly exposed carbon could double the amount of greenhouse gases in the atmosphere – and profoundly change the trajectory of the climate change debate.
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