Sunday, November 22, 2009

All about those emails

What do I think about those leaked CRU emails? Take a shower, a very cold one, excitable skeptics.

This summary of the emails (from skeptical site Watts Up With That, so you can trust it) indicates that most of them are about fighting skeptical views in various ways, but very few are even suggestive of doing it by actually manipulating data or how it is presented.

As I am sure everyone reading this knows, the most "famous" email (referencing a "trick" to "hide the decline") is said by Real Climate to not actually hide anything. It would seem that McIntyre disagrees, but honestly, his obsession with hockey stick graphs gets into so much detail I cannot follow most of his arguments. I doubt that 90% of skeptics who follow him understand much of his statistics talk either.

I should add, as that email is about the hockey stick controversy, that I still don't really understand why skeptics seemingly think this is "be all and end all" of AGW science. I have never taken that big an interest in the graph, because I always suspected that the hockey stick shape might be a little too dramatic to be true. But, as we also have actual thermometers to tell the temperature over the last century or so, I assumed the graph was not actually critical to proving AGW anyway.

My hunch appears basically correct. Bob Ward summarises the hockey stick controversy this way:
The attacks on the hockey stick graph led the United States National Academy of Sciences to carry out an investigation, concluding in 2006 that although there had been no improper conduct by the researchers, they may have expressed higher levels of confidence in their main conclusions than was warranted by the evidence.

The 'sceptics' believe they have been vindicated and have presented the hockey stick graph as proof that global warming is not occurring. In doing so, they have ignored the academy's other conclusion that "surface temperature reconstructions for periods prior to the industrial era are only one of multiple lines of evidence supporting the conclusion that climatic warming is occurring in response to human activities, and they are not the primary evidence".

And Skeptical Science writes:

In the skeptic blogosphere, there is a disproportionate preoccupation with one small aspect of climate science - proxy record reconstructions of past climate (or even worse, ad hominem attacks on the scientists who perform these proxy reconstructions). This serves to distract from the physical realities currently being observed...

When you read through the many global warming skeptic arguments, a pattern emerges. Each skeptic argument misleads by focusing on one small piece of the puzzle while ignoring the broader picture. To focus on a few suggestive emails while ignoring the wealth of empirical evidence for manmade global warming is yet another repeat of this tactic.

The emails do suggest that at least one scientist is very concerned about explaining the plateau-ing of global temperatures in the last 10 years, but this tells us nothing as to how many really think like him.

As many have said, the emails show that scientists are human and really resent being accused of dishonesty, fraud and being part of a nefarious global conspiracy. They also think it is important that people (and governments) believe them.

Ideally science should not get so personal. But it does, and skeptics can hardly claim the high moral ground when it comes to accusations, name calling and spiteful comments about the other side.

I would bet money that these emails make next to no difference in the short or long run.

I would also like to point out that they do not comment at all on ocean acidification, the other reason CO2 needs to be curbed quickly.

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