Massive releases of methane from arctic seafloors could create oxygen-poor dead zones, acidify the seas and disrupt ecosystems in broad parts of the northern oceans, new preliminary analyses suggest.

Such a cascade of geochemical and ecological ills could result if global warming triggers a widespread release of methane from deep below the Arctic seas, scientists propose in the June 28 Geophysical Research Letters.

http://www.sciencenews.org/view/generic/id/60831/title/Methane_releases_in_arctic_seas_could_wreak_devastation

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