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Laughable new paper claims 99.999% certainty global warming over past 25 years is man-made

September 4, 2014

Watts Up With That?

I was tipped off to this paper by a Tweet from SkS Reichfurher John Cook, and I started on writing a rebuttal, but discovered The Hockey Schtick had already done a complete job, so I’ve reposted it here.  -Anthony
The Hockey Schtick writes: A new paper published in a journal called “Climate Risk Management” claims a ridiculous degree of “certainty” of  99.999% that global warming over the past 25 years is man-made. The claim is made based upon climate models already falsified at confidence levels of 98%+.

According to the authors,

“there is less than a one in one hundred thousand chance of observing an unbroken sequence of 304 months [25.3 years] (our analysis extends to June 2010) with mean surface temperature exceeding the 20th century average.”

Fundamental problems with this claim [which is basically the falsified IPCC attribution claim of 95% certainty on steroids] include:

There is no statistical…

View original post 773 more words

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