New Hockey Stick 1, Accra Climate Talks 0
The original authors of the famous hockey stick graph have taken another look at the reconstruction of temperatures over the past thousand years. The best summary of the new findings (and how they relate to both the old paper and the controversy) is at Real Climate. More links at the end of this post.
One journalist who didn’t connect the HS with its history was (thanks to the Knight Science Tracker) Louise Gray, the environment correspondent of the Telegraph. In many ways it’s, for whatever reasons the history is omitted, refreshing to read a story of this reconstruction that is not mired in a stifling debate.
Gray does quote Michael Mann on the tree ring controversy:
“Some have argued that tree-ring data is unacceptable for this type of study,” said Michael Mann, who led the research team at Penn State’s Earth System Science Center. “Now we can eliminate tree rings and still have enough data from other so-called ‘proxies’ to derive a long-term Northern Hemisphere temperature record.”
But there’s no mention of the previous paper or the McIntyre criticisms and the papers that it spawned. Why not? More »


