"the ipcc’s fourth assessment report, 2007, carries in three places a graph in which the hadley center’s global mean surface temperature anomaly dataset from 1850-2005 is displayed with four arbitrarily-chosen trend-lines overlaid upon it.
"the ipcc’s fourth assessment report, 2007, carries in three places a graph in which the hadley center’s global mean surface temperature anomaly dataset from 1850-2005 is displayed with four arbitrarily-chosen trend-lines overlaid upon it.
ipcc fourth assessment report:53
table spm-2 lists recent trends along with certainty levels for the trend having actually occurred, for a human contribution to the trend, and for the trend occurring in the future.