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 […]
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 […]
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 […]
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 […]
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 […]
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 […]
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 […]
New poster bender has written some very thoughtful posts, including some comments on Gaspé which I I’d like to recover from deep in a political thread. The growth pulse in Gaspé cedars seemed very improbable to me as a temperature proxy; bender has some detailed knowledge on the topic.
Thompson et al said that "their [Thompson’s four Tibetan ice core] dO18 histories or proxy temperature records, are remarkably similar at lower frequencies". They are not just similar – they are "remarkably similar" with correlations as high as one milllll-ion.
There’s a new Lonnie Thompson article online at PNAS (thanks to Steve Bloom for reference). It has some "supporting data" – "supporting data to Thompson means only digital versions of the graphics, rather than detailed archives such as Majewski provided for the Everest ice core. Just to annoy anyone who was actually interested in the […]
Climate Audit 