Permafrost could release vast amounts of carbon and accelerate climate change by end of century

Billions of tons of carbon trapped in permafrost may be released into the atmosphere by the end of this century as the Earth's climate changes, further accelerating global warming, a new computer modeling study. The study also found that soil in high-latitude regions could shift from being a sink to a source of carbon dioxide by the end of the 21st century as the soil warms in response to climate change.

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