Thursday, December 12, 2013

Earth’s Sensitivity to Climate Change Could Be 'Double' Previous Estimates, Say Geologists

Distributions and ranges for climate sensitivity from different lines of evidence. The circle indicates the most likely value. The thin colored bars indicate very likely value (more than 90% probability). The thicker colored bars indicate likely values (more than 66% probability). Dashed lines indicate no robust constraint on an upper bound. The IPCC likely range (2 to 4.5°C) and most likely value (3°C) are indicated by the vertical grey bar and black line, respectively. Adapted from Knutti and Hegerl (2008). Click to enlarge.
The sensitivity of Earth's climate to CO2 could be double what has been previously estimated, according to a statement issued by the Geological Society of London.

 Earth’s Sensitivity to Climate Change Could Be 'Double' Previous Estimates, Say Geologists
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