Tag Archives: methyl hydrate

Out of Sight but no longer out of mind; Hidden sources of carbon dioxide and methane

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Emma Fiord, 1987, with lots of sea ice

With the general emphasis on carbon emissions from fossil fuels and the ensuing discussions on climate change, we tend to forget some of the natural sources of greenhouse gases that continually leak carbon dioxide (CO2) and methane (CH4) into the oceans and atmosphere.  Two such sources are gas hydrates beneath the sea floor and permafrost.  Both sequester carbon, but the sequestration is rather tenuous; both can easily be disturbed by natural and anthropogenic processes.

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