Tag Archives: Mann

Mann and the Oxburgh Panel

The Mann libel case has been attracting increasing commentary, including from people outside the climate community. Integral to Mann’s litigation are representations that he was “investigated” by 6-9 investigations, all of which supposedly gave him “exonerations” on wide-ranging counts, including “scientific misconduct”, “fraud”, “academic fraud”, “data falsification”, “statistical manipulation”, “manipulation of data” and even supposed […]

Briffa Condemns Mann Reconstructions

Not in so many words, of course. However, Briffa et al 2013 took a position on the use of radially deformed tree ring cores that would prohibit the use of strip bark bristlecones in temperature reconstructions, thereby emasculating Mann’s reconstructions. And not just the Mann reconstructions, but the majority of the IPCC reconstructions used by […]

Mike’s AGU Trick

There has been considerable recent discussion of the fact that observations have been running cooler than models – see, for example, Lucia’s discussion of IPCC AR5 SOD Figure 9.8 (see here). However, Michael Mann at AGU took an entirely different line. Mann asserted that observations were running as hot or hotter than models. Mann’s assertion […]

AGU Webinar on Michael Mann

An Inside Look at the Michael Mann Case Featuring Peter Fontaine, counsel to Michael Mann and a leader of Cozen O’Connor’s Brownfield Development and Climate Change practices To join the meeting: http://agu.adobeconnect.com/legalwebinar2/ • Please login as a guest with your first and last name. The meeting does not require a password. The meeting hosts will […]

“Infestation of Beetle Larvae”

From time to time, we hear from climate scientists that they are limited in their responses by the dignity of their profession. The dignity to which climate scientists aspire is nicely exemplified by the following remarks of a prominent real_climate_scientist: hey trolls who have been given marching orders to flood the comment threads here like […]

Antarctic RegEM

Image by mark van de wouw via Flickr For discussion of new study. by Steig (Mann) et al 2009. Data: Data sets used in this study include the READER and AWS data from the British Antarctic Survey. SI Tables 1 and 2 provide listings. They leave out station identifications (a practice that “peer” reviewers, even […]

More on Voodoo Correlations

Mann said: Although 484 (~40%) pass the temperature screening process over the full (1850–1995) calibration interval, one would expect that no more than ~150 (13%) of the proxy series would pass the screening procedure described above by chance alone. Reader DC said: Of the 484 proxies passing the 1850-1995 significance test, 342 also passed both […]

Five Monsoon O18 Series

Jud Partin observed yesterday that a “fantastic new record” had been recently (early Nov 2008) published from Wanxiang, China. Zhang et al report that their new record is “broadly similar” to the reconstructions of Esper, Mann and Jones 2003 and Moberg as follows: The Wanxiang record, with a d18O range of ~1.3 per mil (‰) […]


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