Permafrost thaw spurs methane emissions

Read the full story in Chemical & Engineering News.

Arctic soil that’s been frozen for thousands of years is thawing at an alarming rate due to climate change. Melting permafrost frees up water and nutrients that could spur the growth of methane-producing bacteria and methane-transporting plants. Scientific modeling suggests this could cause a disastrous positive-feedback loop, whereby increased methane emissions cause further warming, which thaws more permafrost, leading to more methane emissions, and so on. Now researchers report experimental evidence for the connection between nutrients released from permafrost thaw and increased methane emissions

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