Yearly Archives: 2006

It's Hard to Imagine…

As you all recall, the NAS panel let MBH off rather lightly in respect to disclosure and the House Energy and Commerce Committee couldn’t be bothered. So all in all, MBH dodged a bullet and you’d think that they’d have been wise enough to leave well enough alone. But no. In today’s Nature, Mann, Bradley […]

Thoughts on Alpine Glacier Stratigraphy

Hormes et al 2001 is noted up in passing by the NAS panel, but is given short shrift relative to Thompson. It is not mentioned at all in the IPCC 4AR second draft. This article is one of the underpinnings for the view that there have been 8 warm intervals in the Alps during the […]

IPCC and Glaciers

It seems quite possible to me that study of glacier changes would actually shed some useful light on the relative levels of the MWP and modern warm period. I’m quite prepared to let the chips fall where they may (although I would deny that this would vindicate the statistical falsehoods of the Mann HS, any […]

Green Alps #1

During the past few years, one sees from time to time news releases e.g. here about the “Green Alps”‘? from several German and Swiss scientists: Schlüchter, U Joerin, Holzhauser and Hormes in particular. The NAS panel mentioned Hormes et al 2001 in the sentence after Thompson’s organics, but paid no attention to it. It turns […]

Stumped in Alberta

The NAS panel mentioned the recent 5000-year organics from Quelccaya as being an important potential indicator of 20th century climatic uniqueness. (Lee seems to consider it some kind of smoking gun) I’ll discuss Thompson’s abysmal publication of the data – in particular, his total lack of any stratigraphic information – in a few days, but […]

Cobb's "Cool" Medieval Pacific

I noted yesterday that Allen [2006] did not contain any new data supporting the idea of a "cool medieval Pacific", but that it was based primarily on a paper by Kim Cobb et al [2003] based, as it turns out, on two individual corals at Palmyra Island (6N) – one dated to the 10th century […]

Allen and the "Cool" Medieval Pacific

A press release for Allen (Current Anthropology 2006) has been referred to as showing that there was a “cool” medieval Pacific – thus supporting the view of the Team that the MWP was an incoherent dog’s breakfast. I was wondering if an anthropology professor had actually generated new paleoclimate records – it seemed unlikely, but […]

Survivorship Bias

bender has sent in the following interesting graphic showing how drought-caused dieback could bias a tree ring chronology and interfere with interpretation of past records, emphasizing the continued need to keep U-shaped temperature response functions firmly in one’s mind when considering these series. [image being re-sized] (2012 note) For reference, here are some related postings […]

What is the evidence against warmer MWP?

Lee has criticized me for not fully canvassing the supposedly manifold lines of evidence marshalled by the NAS panel against a warmer MWP. So I’ve done a little exercise to summarize the evidence AGAINST the MWP being warmer than mid-20th century, disaggregating what I believe to be the salient information from the spaghetti studies. The […]

Sciencemag on House E&C Hearing

Richard Kerr of Science has reported on the House Energy and Commerce Committee hearings. Having lived through the hearings, it’s interesting to see how they get characterized. For example, Kerr says: He [North] said he doesn’t disagree with Wegman’s main finding that a single year or a single decade cannot be shown to be the […]