An Inconvenient Peer Review, cont'd

Findings - Fracas Over Hacked Climate E-Mail Shows Peril of Spinning Science - NYTimes.com:

"In fact, one skeptic raised [a concern about drawing conclusions from two sets of data grafted together] in a comment posted in 2004 on RealClimate, the blog operated by climate scientists. The comment, which questioned the propriety of “grafting the thermometer record onto a proxy temperature record,” immediately drew a sharp retort on the blog from Michael Mann, an expert at Penn State University:

“No researchers in this field have ever, to our knowledge, ‘grafted the thermometer record onto’ any reconstruction. It is somewhat disappointing to find this specious claim (which we usually find originating from industry-funded climate disinformation Web sites) appearing in this forum.”

Dr. Mann now tells me that he was unaware, when he wrote the response, that such grafting had in fact been done in the earlier cover chart, and I take him at his word. But I don’t see why the question was dismissed so readily, with the implication that only a tool of the fossil-fuel industry would raise it.

Contempt for critics is evident over and over again in the hacked e-mail messages, as if the scientists were a priesthood protecting the temple from barbarians. Yes, some of the skeptics have political agendas, but so do some of the scientists. Sure, the skeptics can be cranks and pests, but they have identified genuine problems in the historical reconstructions of climate, as in the debate they inspired about the “hockey stick” graph of temperatures over the past millennium."

I love how Mann writes "to our knowledge." Sounds like a press secretary's resort to plausible deniability.