Search Results for: michael mann's hockey stick

PAGES19: 0-30S

In a Climategate email. Keith Briffa famously sneered at Michael Mann’s claim that a temperature reconstruction could represent a hemisphere, including the tropics, by regressing a “few poorly temperature respresentative tropical series” against “any other target series” – even the trend of Mann’s own “self-opinionated verbiage” as follows: I am sick to death of Mann […]

PAGES2K: North American Tree Ring Proxies

The PAGES (2017) North American network consists entirely of tree rings. Climate Audit readers will recall the unique role of North American stripbark bristlecone chronologies in Mann et al 1998 and Mann et al 2008 (and in the majority of IPCC multiproxy reconstructions).  In today’s post, I’ll parse the PAGES2K North American tree ring networks […]

Esper et al 2016 and the Oroko Swamp

Jan Esper, prominent in early Climate Audit posts as an adamant serial non-archiver, has joined with 17 other tree ring specialists, to publish “Ranking of tree-ring based temperature reconstructions of the past millennium” (pdf). This assesses 39 long tree ring temperature reconstructions. The assessment is accompanied by an archive containing 39 reconstruction versions, together with the underlying measurement […]

How Weaver Ignored Corcoran’s Segue

Four of the incidents in J Burke’s background chronology in Weaver v National Post (the January 27, 2005, February 15, 2005, August 2006 and February 27, 2008 incidents) relate, either in whole or in part, to a dispute between Weaver and National Post on whether Weaver had dismissed our research as “rubbish” or “balderdash” or a like […]

How Mann tricked Weaver

In today’s post, I’ll show that even Andrew Weaver was tricked by Mann’s IPCC 2001 hide-the-decline. Weaver’s incorrect belief that the IPCC diagram showed “four” “independent” “hockey sticks” constructed using “different techniques” led him to believe that the research was much solider than it really was (or is), to say that our focus on the Mann […]

Oral Argument 2: EPA on “Fraud” Allegations

Towards the end of Carvin’s mostly cringeworthy rebuttal,  he seemed to score on EPA’s rejection of complaints against Mann’s own defamatory accusations of “scientific fraud”.  EPA had found that Mann’s use of the term “fraud” meant no more than he believed the articles to be “scientifically flawed” and that, in such circumstances, Mann’s language was […]

Oral Argument 1: Context

I have an audio copy of the oral argument in Mann v Steyn, which I’ve posted up (see link at the end of this post). One of things often under-estimated by those readers (especially at WUWT) who are bloodthirsty for litigation as a means of settling scores is that it’s not easy for litigation lawyers to […]

Rule N revisited

PCA was also performed on certain proxy sub-networks (spatially dense regional networks of tree-ring data available separately in different continents) as means of dimensional reduction of the predictor network. In this case, the procedure was performed separately for each independent step of the stepwise calibration/reconstruction procedure described in “3” below. A decreasing number of PCs […]

The “Discovery” of the EPA Inquiry

One of the essential elements in Mann’s reliance on EPA findings is his assertion that his supposed exoneration by EPA had been “widely available and commented” on in the media and had been “read by the Defendants”: All of the above reports and publications were widely available and commented upon in the national and international […]

Mann Misrepresents NOAA OIG

In today’s post, I’ll consider a fifth investigation – by the NOAA Office of the Inspector General OIG here- and show that, like the other four considered so far, Mann’s claims that it “investigated” and “exonerated” Mann himself were untrue. In addition, I’ll show that Mann’s pleadings misrepresented the findings of this investigation both through […]