I’ve re-read section 7 of IPCC 1 [1990], which contains the graph used in the WSJ editorial. I highly recommend that everyone interested in this topic take a look at IPCC 1. First of all, here is a scan of Figure 7.1 together with the original caption. Original Caption: Figure 7.1. Schematic diagrams of global […]
A little while ago, I mentioned here the curious and very large adjustment to 19th century sea surface temperatures based on changing hypotheses about the relative use of wood and canvas buckets. It’s always worth checking whether there’s a hidden agenda for seemingly innocent adjustments. Sometimes my instincts are pretty good. Here’s Figure 3.20 from […]
David Appell has posted up an exchange in Scientific American in response to his hagiography of Michael Mann. Here are some comments on Appell’s points.
As some readers have pointed out, there is a response to the WSJ editorial here. One point that I’d like to re-iterate for the umpteenth time: our articles have been purely critical; they do not propose any view of climate history. I am intrigued by evidence of past warmth, but have not attempted to argue […]
The Wall Street Journal ran editorial today in which M&M were mentioned. They say: Mr. Mann has never offered a serious rebuttal to the McIntyre-McKitrick critique. He has refused to fully explain his methodology, claiming he’s the victim of "intimidation." That’s odd when you consider that the sine qua non of real science is independently […]
A reader of this website recently sent a letter to Canada’s Minister of the Environment, Stéphane Dion, urging him to consider our 2005 articles. I have included here the Minister’s response, in which he states that “many of our arguments have been refuted by by Jones and Mann in their recently published review paper (Review […]
While there has been a great deal of discussion in other locations about possible urban heat island effect, there has been relatively little discussion about SST (sea surface temperature) adjustments and NMAT (night marine air temperature) adjustments. This is too bad. I’m not going to get into this, but there are some handy sources which […]
I was browsing through some Jacoby articles for a different purpose and was reminded of the very interesting references to a relationship between high-latitude tree ring growth and southern exposure to the sun in two of his 1980s articles, which do not get mentioned any more once the GW campaign is on.
I have a lengthy op ed in today’s National Post go here summarizing some of the debate since publication of our 2005 articles. The article is on page FP19. Update: The link is now offline. Here is the text as I submitted it to National Post; it may differ a little, but not much.
‘Tis nearly the Atlantic hurricane season, a traditional time for battening down the hatches, making sure the family are safe in the storm shelter, and making sure you are safely marooned in the local bar (this is what I did during one hurricane in the Bahamas in 1995). ‘Tis also the time for people to […]
Climate Audit 
An Exchange at Scientific American
David Appell has posted up an exchange in Scientific American in response to his hagiography of Michael Mann. Here are some comments on Appell’s points.