Category Archives: Uncategorized

Yet Another Misrepresentation in the Mann Pleadings

In today’s post, I’ll discuss another misrepresentation in Mann’s Statement of Claim, one in which Mann bizarrely misrepresented the nature of his own research, falsely claiming credit for being “one of the first” to “document” the increase in 20th century temperatures. This particular false claim was in the same paragraph as Mann’s false claim to […]

ACLU and National Media Intervene in Mann v Steyn et al

I get the sense that the Washington libel community and U.S. national media have belatedly woken up to the potential threat of Mann v Steyn and that the tide is now starting to run strongly against Mann in the anti-SLAPP proceedings. The most visible evidence of this is an impressive Amici brief from the ACLU […]

WG2 Misleads on Undernourishment Trend

Food security was one of the touchstone issues of the IPCC WG2 Summary for Policy Makers. In its chapter on food security (Chapter 7), IPCC’s single statement on changes on undernourishment was that 75 million were added to the undernourishment rolls between 2003-5 and 2007: FAO’s provisional estimates show that, in 2007, 75 million more […]

Paper justifying AR4’s use of a uniform prior for estimating climate sensitivity shown to be faulty

This is a guest post by Nic Lewis.   In July 2004 the IPCC held a Working Group 1 (WG1) Workshop on climate sensitivity, as part of the work plan leading up to AR4. In one session, Myles Allen of Oxford university and a researcher in his group, David Frame, jointly gave a presentation entitled […]

Cook’s Trick

In today’s post, I’m going to present a narrative of Richard Tol’s efforts to obtain rater ID and timestamps from the University of Queensland. See pdf here. While there have been a number of references to these efforts, few readers and commenters will (or can reasonably) spend the time to pull the threads together. Tol […]

Cook’s Fake Ethics Approval

For over a year, John Cook and the University of Queensland have repeatedly refused Richard Tol’s requests for information on rater ID and timestamps for the SKS ratings for Cook et al 2013. Recently there have been two events that shed new light on the dispute. First, in mid-May Brandon Shollenberger located the requested information […]

Was Lawson Right about the UK Floods?

In February 2014, Nigel Lawson and Brian Hoskins (Chair of the Grantham Institute for Climate Change) appeared on the BBC’s Today show to answer whether there was “a link between the rain in recent days and global warming”. Lawson, an experienced man of affairs though not a “climate scientist”, briefed himself on the matter and […]

George Zimmerman’s Libel Lawsuit

Last week, a Florida court dismissed the libel suit of George Zimmerman e.g. here. In today’s post, I’ll discuss aspects of this decision, which are relevant to Mann’s libel suit against Steyn and others. Figure 1. Two libel plaintiffs: left – George Zimmerman; right – Michael Mann.

Abram et al 2014 and the Southern Annular Mode

In today’s post, I will look at a new Naturemag climate reconstruction claiming unprecedentedness (h/t Bishop Hill): “Evolution of the Southern Annular Mode during the past millennium” (Abram et al Nature 2014, pdf). Unfortunately, it is marred by precisely the same sort of data mining and spurious multivariate methodology that has been repeatedly identified in […]

Mann’s new paper recharacterizing the Atlantic Multidecadal Oscillation

A guest post by Nic Lewis   Michael Mann has had a paper on the Atlantic Multidecadal Oscillation (AMO) accepted by Geophysical Research Letters: “On forced temperature changes, internal variability, and the AMO”. The abstract and access to Supplementary Information is here . Mann has made a preprint of the paper available, here . More […]


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