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Published online 29 October 2009 | Nature | doi:10.1038/news.2009.1049
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Aerosols make methane more potent
Air pollution linked more closely to climate concerns.
Aerosols' complicated influence on our climate just got more threatening: they could make methane a more potent greenhouse gas than previously realized, say climate modellers.
Drew Shindell, at NASA Goddard Institute for Space Studies, New York, and colleagues ran a range of computerized models to show that methane's global warming potential is greater when combined with aerosols — atmospheric particles such as dust, sea salt, sulphates and black carbon.
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