I HAVE been “characterizing” the Goddard Institute for Space Studies (GISS) temperature process and how the data are transformed…
My conclusion is that the anthropogenic global warming (AGW) “signal” is an artifact of the arrival and departure of thermometers from the scribal record: the addition of more thermometers in the Southern Hemisphere followed by the loss of Siberian thermometers with the collapse of the Soviet Union.
The thermometer count rises from 1 in 1701 to over 9,000 then drops back to under 3,000 today. This has an impact…
Read more here: http://chiefio.wordpress.com/2009/08/05/agw-is-a-thermometer-count-artifact/

Jennifer Marohasy BSc PhD has worked in industry and government. She is currently researching a novel technique for long-range weather forecasting funded by the B. Macfie Family Foundation.