Climate Change Background Wrong!?

Two Canadian researchers have found significant flaws in the original 1998 Mann, Bradley and Hughes Climate Change paper. Shows that the famous "hockey stick" upturn in temperature graphs - which is the basis of most claims about climate change and the basis of most related public policy since then, including Kyoto - can be produced as effectively by random data as by the MBH98 data, and that the Mann paper mis-disclosed key aspects of the calculations used to produce the "hockey stick" graph. Worth reading, but very technical. Of course it does not mean that humans aren't contributing to climate change, only that we really don't have the prove that some activists claim we have.