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Published online 27 September 2006 | Nature | doi:10.1038/news060925-9
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Methane emissions on the rise
Industrial greenhouse-gas increase has been masked by natural declines.
Current projections of methane emissions are likely to be too optimistic, an international team of atmospheric scientists reports today in Nature1.
Methane, which is less abundant in the atmosphere than carbon dioxide but 20 times more potent as a greenhouse gas, is thought to have been responsible for up to one-third of global warming since the industrial revolution.
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