The story is told in a simple graph, the same one that University of Alabama’s John Christy presented to the House Committee on Natural Resources on May 15.
The picture shows the remarkable disconnect between predicted global warming and the real world.
The red line is the 5-year running average temperature change forecast, beginning in 1979, predicted by the UN’s latest family of climate models, many of which are the handiwork of our own federal science establishment. The forecasts are for the average temperature change in the lower atmosphere, away from the confounding effects of cities, forestry, and agriculture.
The blue circles are the average lower-atmospheric temperature changes from four different analyses of global weather balloon data, and the green squares are the average of the two widely accepted analyses of satellite-sensed temperature. Both of these are thought to be pretty solid because they come from calibrated instruments.