The Hockey Stick Breaks

The Hockey Stick Breaks (Protagoras, June 25, 2007)

(A long but something you should read if interested in Global Warming)

A truly dramatic event in contemporary intellectual history occurred unnoticed in April. To understand it, you have to understand the history of the famous Hockey Stick climate chart, which has decorated IPCC documents since the late nineties, appeared in lots of Green publications all over the world, and has been used as vivid proof that human caused global warming (AGW) is real and an imminent threat to human life and civilization.
(snip)

It is too early to be definite about what this is showing, but it seems clear already what it is not showing. It is not supporting the hypothesis that there is a warming trend in the instrument record when we eliminate heat island effects. It turns out that on examination of the details, for the few stations that have been examined, if the stations are 'good', that is, properly maintained, away from extraneous heat sources, in properly constant rural areas, they seem to show little or no temperature rises.

http://www.oftwominds.com/journal/global-warming6-07.html