An example of the famous 'Hockey Stick graph', showing the rise in global sirface temperature since the year 1000. Graphic: PAGES2K study

[Right now, the prudent thing for Mark Steyn to do is to keep his mouth shut, but it seems that he can’t resist defaming Michael Mann. –Des]

By Greg Laden
22 June 2015

(Science Blogs) – There is a new attack by an anti-science and anti-environment talking head on a well respected climate scientist and his work. Mark Steyn is self publishing a book of quotes by scientists that allegedly disparage Dr. Michael Mann and the “Hockey Stick.” If the three examples Steyn provides to advertise his book are representative, Steyn’s book is unlikely to impress. Like previous attempts to separate a key individual from the herd, Steyn’s latest money making scheme could make him a few bucks (his fans seem gullible) but in the end will destroy anything that happens to be left of his credibility and, possibly, his legal argument that he is not actively and maliciously attempting to defame an individual.

Here’s the story.

Conservative political commentator Mark Steyn has a new book coming out. I haven’t seen it yet, but looking at the publicity material provided by Steyn (the book is self published) it appears to be a collection of scientist’s comments disparaging the work of Michael Mann and criticizing the famous “Hockey Stick” research. This is a bit odd because Steyn is currently being sued by Mann for defamation, and this book looks like it could be more defamation. It would appear he has not consulted his lawyers!

The Hockey Stick is a concept, and a graphic, that arose as the result of a paper produced in 1999 by Michael Mann, Raymond Bradley, and Malcolm Hughes. The researchers constructed a proxy northern hemisphere temperature curve, from ice cores and tree rings, which showed temperature variability over the previous 1,000 years. This curve was matched with direct temperature measurements from the previous century, and ultimately played an important role in demonstrating the effects of human greenhouse gas pollution on the global surface heat balance. The graph showed the dramatic change in surface temperature after industrialization, indicates a steady increase in temperature, and showed how dramatic this change is in relation to previous time periods. This and other related research, by the same group and others, also showed that previous known historical climate swings such as the so-called “Medieval Warm Period” and “Little Ice Age” were minor compared to recent warming (and also relatively regional, not global). […]

Now, back to Mark Steyn’s forthcoming work. The book is A Disgrace To The Profession: The World’s Scientists, In Their Own Words, On Michael E Mann, His Hockey Stick And Their Damage To Science: Volume I Compiled and edited by Mark Steyn. [more]

Mark Steyn’s Newest Attack On Michael Mann And The Hockey Stick

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