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Permafrost

It's a gas

Climate change is causing widespread permafrost thaw in the Arctic. Measurements at 33 Arctic lakes show that old carbon from thawing permafrost is being emitted as methane, though emission rates have not changed during the past 60 years.

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Figure 1: Thawing permafrost along a thermokarst lake edge in northern Sweden.

JONAS ÅKERMAN

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Correspondence to Torben R. Christensen.

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Christensen, T. It's a gas. Nature Geosci 9, 647–648 (2016). https://doi.org/10.1038/ngeo2803

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