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Soil science

Arctic thaw

The organic matter stored in frozen Arctic soils could release significant quantities of carbon dioxide and methane on thawing. Now, laboratory experiments show that re-wetting of previously thawed permafrost could increase nitrous oxide production by 20-fold.

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Figure 1: High daily nitrous oxide emissions from Arctic, temperate and tropical soils.


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Jungkunst, H. Arctic thaw. Nature Geosci 3, 306–307 (2010).

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