Tuesday, October 17, 2017
 

A sea change in the Arctic atmosphere

Thinning sea ice in spring affects ozone chemistry with implications for mercury contamination

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Arctic warming has thinned springtime sea ice across the Arctic Ocean. A new study shows that this alters the chemistry of the atmosphere near the Earth’s surface and may increase the amount of toxic mercury contaminating the region.

Methane from the sea

Researchers find elevated levels of the greenhouse gas above cracks in Arctic sea ice

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The potent greenhouse gas methane is seeping out of parts of the Arctic Ocean, and the discovery may represent another cycle contributing to climate warming in the region.

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