If they relied solely on satellite data, which accurately covers the entire planet, 2010 would not top the list. Why NASA of all places, refuses to use space age technology to measure the global temperature is absurd.
By the way, even Phil Jones, head of the defamed UK Climate Research Unit, admitted following the release of the Climategate emails there has been no statistically significant warming since 1995.
The bottom line is our global temperature databases are so seriously screwed up, and the people crunching the numbers so tilted politically to the left, that climate trends and annual rankings can no longer be presumed accurate.
As for Hansen, in a recent blog posting he`s now calling Americans “the barbarians” of the planet who are run by a “fossil-money-democracy that now rules the roost.”
Hey, Hansen. For your next trick how `bout disappearing?