New paper finds climate sensitivity to CO2 is about 63% less than IPCC claims — Paper under review for Climate of the Past
Study 'finds on the basis of reconstructed temperatures and CO2 during the Oligocene epoch that the climate response to increased CO2 is only about 1/3 of that estimated by the IPCC...the author finds that the low climate sensitivity of 1.1°C per doubling of CO2 levels is confirmed by being 'of similar order to sensitivity estimates published from satellite observations of tropospheric and sea-surface temperature variations.'
