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climate.nasa.gov

With thick ice gone, Arctic sea ice changes more slowly

The Arctic Ocean's sea ice blanket has already lost most of its old ice and two-thirds of its thickness. The younger ice is thinning more slowly and variably.
Far northern permafrost may unleash carbon within decades
climate.nasa.gov

Far northern permafrost may unleash carbon within decades

Permafrost in the coldest northern Arctic - formerly thought to be at least temporarily shielded from global warming by its extreme environment - will thaw enough to become a permanent source of carbon to the atmosphere in this century, with the peak transition occurring in 40 to 60 years, according to a new NASA-led study.

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