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Arctic permafrost thawing and releasing heat-trapping gases

Original: Arctic permafrost is thawing and leaking heat-trapping gas into the atmosphere

Arctic permafrost is thawing and releasing heat-trapping greenhouse gases such as methane and carbon dioxide into the atmosphere, adding a new driver of global warming. Scientists warn the process could create a feedback loop: warming temperatures melt more permafrost, which releases more gas, which accelerates warming further.

Why now: Concern about climate change and a potential self-reinforcing warming feedback loop

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Evidence

• Arctic permafrost is thawing and leaking heat-trapping gas into the atmosphere · NBC4 Washington

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