25 Nov '11, 6pm

Study Finds Limited Sensitivity of Climate to CO2

Scientists say the Earth will warm in response to increasing carbon dioxide levels in the atmosphere, but since the 1970s, they have not made much headway in narrowing down exactly how much it will warm. Typical forecasts say that if humanity doubles the amount of carbon dioxide in the atmosphere before emissions cease, the temperature will most likely rise by about 5.4 degrees Fahrenheit, though the figure could be as low as 3.6 degrees or as high as 8.1 degrees. And scientists have not entirely ruled out far higher numbers. Now comes a new entry in the effort to specify the value known as “climate sensitivity,” and it falls on the low side of the existing estimates. The paper , in the journal Science, calculates that a doubling of carbon dioxide will most likely lead to a warming of 4.1 degrees Fahrenheit, though the number could be as low as 3 degrees or as high as 4.7 ...

Full article: http://dotearth.blogs.nytimes.com/2011/11/25/study-finds-...

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Study Finds Limited Sensitivity of Climate to CO2

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Recalling the perils of single-study syndrome , it’s still important to note a new study that appears to go a long way tow...

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