BIOGEOCHEMISTRY

Arctic loses carbon as winters wane

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Warming in the Arctic is causing soils to decompose more rapidly, even during winter. Now, estimates of winter carbon dioxide loss indicate that it can offset carbon gains during the growing season, meaning that the region is a source of carbon.

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Fig. 1: A flux tower on the North Slope of Alaska.

Salvatore Losacco

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Correspondence to John L. Campbell.

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Campbell, J.L. Arctic loses carbon as winters wane. Nat. Clim. Chang. 9, 806–807 (2019) doi:10.1038/s41558-019-0604-8

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