Antarctic Ice Sheet May Cover Vast Amounts of Methane
The Antarctic Ice Sheet could be an overlooked but important source of methane, a potent greenhouse gas, according to a report in Nature by an international team of scientists.
The 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.
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