The Babbage blog has a long entry on the current state of climate science. It includes this graphic, showing a comparison of temperature records collected by different bodies including NASA’s Goddard Institute for Space Studies, the Climatic Research Unit at the University of East Anglia, and the American National Oceanic and Atmospheric Administration:

The post was prompted by testimony given by Richard Muller of Lawrence Berkeley Laboratory, in which he described a new study that “seems essentially to have confirmed the results of earlier work on the rate at which the earth’s temperature is rising”.