just doubled

American Footprints reports:

'the new projections, published this month in the American Meteorological Society's Journal of Climate, indicate a median probability of surface warming of 5.2 degrees Celsius by 2100, with a 90% probability range of 3.5 to 7.4 degrees.

This can be compared to a median projected increase in the 2003 study of just 2.4 degrees.'