The incredibly elusive absolute surface air temperature

Dr James Hansen

Yesterday, Dr Vincent Gray sent out his Climate Truth Newsletter (no. 310). In it he adverts to an outrageous admission of common sense by James Hansen. Years ago, Hansen admitted on his GISS web page that there’s no agreement among scientists on what constitutes an acceptable surface air temperature.

Sensationally, he also said that it’s IMPOSSIBLE to obtain a scientifically meaningful surface air temperature (SAT).

Now, with Hansen’s resignation from NASA, Gavin Schmidt has rushed in to take charge of these surprising admissions. Curiously, I see that Schmidt’s description is “NASA Official,” where Hansen was the “Responsible NASA Official.” Significant, interesting or irrelevant? Speculation might be endless…

The link above to the previous version of the page at the Wayback Machine is from 15 October, 2008, but that page is marked as last updated on 12 July, 2005. There are three more words in the body text of the current version than on the old page; I conclude they’re essentially identical.

These comments asserting the impossibility of determining the SAT put a disturbing slant on Hansen’s alarmism based on the SAT during the last 20 years of the 20th Century. Continue Reading →

The hockey stick

Here’s a story you haven’t heard, and you should have. An analyst, working for the government, uses computers to crunch numbers and find the truth. Let’s call him “Mann.” The trouble with Mann is, he has an ideology. He knows what he wants his results to be. more…