How much carbon will peatlands lose as permafrost thaws?

Just as your freezer keeps food from going bad, Arctic permafrost protects frozen organic material from decay. As the climate warms, however, previously frozen landscapes such as peatlands are beginning to thaw. But how much ...

Bacteria release climate-damaging carbon from thawing permafrost

A new study based on scientific sampling of a rusty carbon sink at a permafrost peatland at Sweden has revealed that iron minerals fail to trap organic carbon, a vast source of CO2 and methane not included in global warming ...

Abrupt permafrost thaw alters microbial structure and function

Permafrost thaw could emit substantial carbon (C) into the atmosphere, and possibly trigger a positive feedback to climate warming. As the engine of biogeochemical cycling, soil microorganisms exert a critical role in mediating ...

Climate change is threatening unique permafrost landforms

As the permafrost thaws, the topography of the Arctic will alter dramatically, according to an international study headed by Finnish geographers. The study, which covered the entire area of permafrost in the Arctic, found ...

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