It’s been too long since our last round of Spot the Hockey Stick! but despite the impressive backpedalling of some that the Mann, Bradley and Hughes study is sooo old hat and soooo last millennium, it’s still being cited at breathtaking pace as the best thing in climate science since the thermometer.
Thus we come to Dr Andrew Weaver, of the School of Earth and Ocean Sciences at the University of Victoria in Canada. In his EOS460: Earth System Science course which you can find at this link.
Now this next bit will cause some reaction, so Steve if you’re reading this, put down the bottle so you don’t spit beer all over the keyboard.
Remember the Mann-Appell article only a few days ago, where on the subject of the Medieval Warm Period and the Little Ice Age, they were definite that the MWP and LIA were regional only events and not global, and that this was why the Hockey Stick did not have them?
For instance, skeptics often cite the Little Ice Age and Medieval Warming Period as pieces of evidence not reflected in the hockey stick, yet these extremes are examples of regional, not global, phenomena.
Well, here is Dr Andrew Weaver’s view in Lecture 1:
UPDATE April 9, 2005: Some of the language in this has been edited at the request of Andrew Weaver.