Daily Archives: May 11, 2012

TC and DW

Our old friend Tim Curtin has published a paper in what is supposed to be a peer-reviewed scientific journal. I’m skeptical.

He regresses temperature time series against a variety of predictor variables, concluding that there is no real influence of “non-condensing greenhouse gases” (i.e., GHG except water vapor) like CO2. He achieves this by rejecting regression of temperature in favor of regression of the first-differenced temperature data. You get that by taking the difference between each data value and its predecessor.

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BS and DK

[Note: see the UPDATE at the end of the post]

Brandon Shollenberger has written a blog post about my last post. I consider it an example of the Dunning-Kruger effect, that unskilled individuals overrate their ability.

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