Talking about Methane’s impact on global warming far higher than previously thought – Times Online

 

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Methane’s impact on global warming far higher than previously thought – Times Online
The effects of a critical greenhouse gas on global warming have been significantly underestimated, according to research suggesting that emissions controls and climate models may need to be revised Methane’s impact on global temperatures is about a third higher than generally thought because previous estimates have not accounted for its interaction with airborne particles called aerosols, Nasa scientists found. When this indirect effect of the potent greenhouse gas is included one tonne of methane has about 33 times as much effect on the climate over 100 years as a tonne of carbon dioxide, rather than 25 times as in standard estimates. Drew Shindell, of the Nasa Goddard Institute for Space Studies in New York, who led the study, said that the findings added to the importance of measures to contain methane emissions, as well as those of carbon dioxide

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