fourth assessment report (ar4), in which the likely range is given as 2.0°c to 4.5°c, with a best estimate of 3.0°c" (pat michaels)
fourth assessment report (ar4), in which the likely range is given as 2.0°c to 4.5°c, with a best estimate of 3.0°c" (pat michaels)
climate sensitivity:72
ipcc authors concluded ecs is very likely to be greater than 1.5 °c (2.7 °f) and likely to lie in the range 2 to 4.5 °c (4 to 8.1 °f), with a most likely value of about 3 °c (5 °f).