The Blackboard

Did you know you can cherry pick without knowing it? It works like this:

You speculate there “some trees” are temperature proxies, but “other trees aren’t. (So far, you’re actually ok.)
Then, instead of trying to do a real calibration study to discover what sorts of trees are temperature proxies and which aren’t, you just [...]

Roger posted a comment on Ross’s discussions of the explosive Yamal tree ring issue. It’s well worth reading — particularly if you want the story stripped of any mention of precise statistical issues. (SteveM has been posting, but the individual posts generally include some analysis which can spread out the less technical tidbits [...]