Reality, not models - finally, someone gets the picture. From the University of Wisconsin - Madison:
A global temperature conundrum: cooling or warming climate?
When the Intergovernmental Panel on Climate Change recently requested a figure for its annual report, to show global temperature trends over the last 10,000 years, the University of Wisconsin-Madison’s Zhengyu Liu knew that was going to be a problem.
“We have been building models and there are now robust contradictions,” says Liu, a professor in the UW-Madison Center for Climatic Research. “Data from observation says global cooling. The physical model says it has to be warming.”
Says it all. Boots on the ground measurement, not mathematical models constructed to deliver the data points you need to get that new Federal $$$ grant for your department.