Now he has done it again -- this time fisking the Briffa (2000) tree ring graphs that purport to show a "hockey stick" upturn in temperatures in the late 20th century. It turns out that Briffa et al were being highly selective of which trees to include and which to exclude. Couple that with their refusal to release their source data until finally forced to do so by a scientific journal. Now their deception is laid bare.
Full description is at Climate Audit. Intriguing layman explanation at comment #7. (Updated: thanks kiwitrc)
The question is: why would we waste billions on an ETS, when the "science" behind it is so shonky?
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Comment by kiwitrc, on 29-Sep-2009 17:55
Comment 10 or 7?
Comment by NZtechfreak, on 30-Sep-2009 15:28
Come now, you can't point at one work and make the generalisation that the whole of the science behind environmental change is 'shonky'.
Comment by edge, on 1-Oct-2009 11:56
Thanks for the ntofication David - very interesting stuff. More light than heat for a change in this aspect of the overall debate. The best thing about the site is the very measured approach they take - as opposed to the slanging that tends to come from so many on both sides of the debate.
It was indeed #10, but some of the earlier comments got moved to "unthreaded" later in the piece, to keep the discussion on track - hence the change from the original #10.
Comment by Bruce Wayne, on 11-Oct-2009 14:52
Wasn't Briffa's 1995 study on the Polar Urals?
McIntyre's critique is of the 2000 Yamal study.
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