Author Archives: Stephen McIntyre

Some Thoughts on Disclosure and Due Diligence in Climate Science

This post seems to have caught a chord and has quickly become the most read posting on the site. It was was cited approvingly by Roger Pielke at his blog [now here] and re-printed with slight edits by National Post on Feb. 15, 2005.

Global TV (Canada) – Feb. 13, 2005

Ross McKitrick was on Global TV yesterday and gave an excellent presentation, especially in comparison to the Canadian Environment Minister, Stephane Dion.

Wall Street Journal – Feb. 14, 2005

There’s going to be an article about the work of M&M in tomorrow’s Wall Street Journal. (Update: Here’s a url Here’s what’s on the online coverpage: Climate Graphic Faces Attack Since it was published four years ago, the "hockey stick" temperature graph has been used by hundreds of environmentalists, scientists and policy makers to make […]

Overview

We’ve provided a recent non-technical overview of our results here . Webpages providing links and providing htm versions of this overview and links are at either of http://www.climate2003.com or Ross McKitrick You can contact me at smcintyre25 AT yahoo.ca. If you want to talk to me, I’ll email a cell #. This blog started on […]

Errors Matter #3: Preisendorfer’s Rule N

In the last two days, I’ve argued that it’s insufficient for Mann et al. to merely “get” a hockey stick shape some other way, but that they have to show that any such salvage reconstruction meets the representations and warranties of MBH98 as to reasonably even spatial sampling, robustness, statistical skill and proxy validity. I’ve […]

"A Dynamic Group of Coffee Drinkers"

While I was working up some other notes, I checked Mann’s reference to a presentation by Jolliffe, supposedly justifying de-centered uncentered principal components analysis. (It doesn’t, but that’s for another day.) Anyway, the hyperlink has disappeared. Chasing up the directory chain, the Jolliffe presentation had been previously stored by the Climate Systems Analysis Group of […]

"Better for Our Purposes"

Can anyone explain to me the meaning of the following email from Hughes to Mann, dated July 29, 1997, archived at Mann’s FTP site at ftp://holocene.evsc.virginia.edu/pub/MBH98/TREE/VAGANOV/ORIG/malcolm_29-JUL-97. As follow-up, the site arge030 was listed in the original SI as being used in MBH98, but was not actually used in MBH98 calculations evidenced at Mann’s FTP site. […]

Medieval Treelines #1

Larry Huldén of the Finnish Museum of Natural Science sent me a nice note, mentioning: I have met Phil Jones in Helsinki during a Climate meeting. My wife had a paper on mediaeval warm period in Finland in which she showed that oak (Quercus robur) forests occurred some 150 km north of the present time […]

Ross McKitrick on Canadian TV

Ross will be on the Global television network in Canada at 6:30 pm Eastern time. Stephane Dion, Minister of the Environment in Canada, will be doing one interview. Ross will be doing another. (It was taped today.)

Sir John Houghton and the Hockey Stick #1

Of all people involved in the promotion of the Hockey Stick, Sir John Houghton, head of the IPCC is probably the chief champion of MBH98 and MBH99 as the "scientific consensus" of how the global climate changed in the last millenium. Here’s Sir John in front of that famous graph Referring to the Hockey Stick, […]