Are they using the numbers that the Climate Institute in London made up? (Their computer programs have comments explaining that computations were arbitrary, made to produce the results required.) Or do they come from numbers supposedly adjusted for the heat island effects of cities, that somehow are more extreme than the raw data rather than less? Do they account for or ignore the long-observed correlations of global weather with solar activity? Were any of the authors scientists who lost their jobs for disagreeing, on scientific grounds, with the AGW orthodoxy?
You do realize that the earth is still cooler than it was during the Medieval Warm Period? When the Vikings had colonies in Greenland--when Greenland really was green?