Methane Under Antarctica Ice

There is a lot of stored Methane in the environment and numerous natural sources. Well add a sort of new one that may be bigger than previously supposed. A new study demonstrates that old organic matter in sedimentary basins located beneath the Antarctic Ice Sheet may have been converted to methane by micro-organisms living under oxygen-deprived conditions. The methane could be released to the atmosphere if the ice sheet shrinks and exposes these old sedimentary basins. The researchers estimate that 50 per cent of the West Antarctic Ice Sheet (1 million km2) and 25 per cent of the East Antarctic Ice Sheet (2.5 million km2) overlies preglacial sedimentary basins, containing over 21,000 billion tons of organic carbon.

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