The “Index of Leading Environmental Indicators 2005” of the Pacific Research Institute says the following: “The “hockey-stick” graph, believed to be one of the leading indicators of global warming, is now being called “rubbish.” Scientists have shown that the graph’s underlying equation would generate the same result for any series of random numbers." In another […]
Richard G. Anderson, William H. Greene, Bruce D. McCullough and H. D. Vinod have some very interesting comments in a recent Federal Reserve Bank of St Louis Working Paper about the importance of archiving data and code, in which they cite our work approvingly. Here’s a nice cut phrase that they quote: An applied economics […]
I find it difficult to believe that so many scientists have seemingly accepted the realclimate argument that Preisendorfer’s Rule N applied to a principal components calculation is somehow a substitute for proper statistical analysis. To show the goofiness of this argument, I asked a friend to compile a list of weekly closing prices for 20 […]
Of all news outlets across the world, the supposedly unbiased BBC has been one of the greatest cheerleaders of global warming alarmism in general, and the Hockey Stick in particular. My encounters with the journalists who write on the BBC website have been brusque and condescending. As a mere taxpayer and license fee payer, I […]
ORIGINAL: A little while ago I mentioned that the original SI at Nature for MBH98 had been deleted. It contained some information which is not in the Corrigendum SI, such as RE statistics for the various steps and the original (incorrect) data listing. Now Mann has either deleted the UMass SI for MBH98 and MBH99 […]
Ross McKitrick has an engaging presentation of the Hockey Stick Debate presented on April 4, 2005. Here is the abstract: The hockey stick debate is about two things. At a technical level it concerns a well-known study that characterized the state of the Earth’s climate over the past thousand years and seemed to prove a […]
Sometimes the Mann Hockey Stick (1999) is eclipsed by another reconstruction which goes twice as far back and with even less statistical significance (if that’s possible) than the original. Yes, it’s the "Mann Hockey Stick mark deux" produced by Drs Jones and Mann to widespread indifference in 2003. Steve has tried replicating this one as […]
Mann has recently provided some inaccurate information on his treatment of bristlecone pines.
This was sent to me by Ross McKitrick, a man who knows how to ruin an Englishman’s afternoon with a single e-mail. The Canadian Government, fresh from doubling its estimate of how much the Kyoto Protocol will cost the Canucks, and without a clue as to what to do about crashing the Canadian economy mitigating […]
In human behavior, when people have stated a position that they believe to be true, they are subsequently loath to admit error, even in the face of overwhelming evidence to the contrary. To be wrong, is in a sense, to sense shame or failure. But the fact is, we’re all wrong from time to time. […]
Climate Audit 
McKitrick: What the Hockey Stick Debate is About?
Ross McKitrick has an engaging presentation of the Hockey Stick Debate presented on April 4, 2005. Here is the abstract: The hockey stick debate is about two things. At a technical level it concerns a well-known study that characterized the state of the Earth’s climate over the past thousand years and seemed to prove a […]