Yearly Archives: 2011

AR5 Loves Steig et al 2009

Jeff Id has an excellent post on IPCC AR5 use of the highly flawed Steig et al 2009. Despite Steig’s efforts to block the publication of O’Donnell et al 2010, O2010 shows clearly that whatever is new in Steig et al 2009 is not only incorrect, but an artifact of flawed math and whatever is […]

“Not Unusual”: AR5 (ZOD) and Climategate 2.0

In today’s post, I’ll connect an important conclusion in the draft AR5 report to an email exchange that is given extensive treatment in Climategate 2.0.

Kinnard Arctic O18 Series

Kinnard et al 2011 report a highly hockey-stick shaped reconstruction of sea ice. (For a different perspective based on Holocene ocean sediments under the Ellesmere Island ice shelf, see the recent Antoniades et al (PNAS 2011). Kinnard et al use a regression-based statistical methodology that looks at first blush to be a sort of inverse […]

Moderate Low Weight

(This post is by Jean S.) A few days ago Steve discussed Raymond Bradley’s objection to use of the Yang Chinese composite reconstruction in the Mann et al Eos-response to Soon & Baliunas (2003). Bradley called the series “crap”, and demanded it to be removed from Figure 2 in the Eos article. It is not […]

Kinnard and the D’Arrigo-Wilson Chronologies

Two interesting new proxy studies out recently, one with a meticulous archive, one without. Kinnard et al 2011 (Nature) here is a proxy reconstruction using 69 proxies to reconstruct Arctic sea ice. It contains a comprehensive archive: all proxies as used as archived; all code is archived. Three of the coauthors are Canadians, including David […]

Crowley Tries to Get Data from Jacoby

In 2004, prior to starting Climate Audit, I tried to get data from both Gordon Jacoby and Tom Crowley – neither experience being very pleasant. Climategate-2 emails provide an interest vignette in which Crowley got very frustrated trying to get data from Jacoby in 2008.

Climategate 2.0 : The Cause

Another incisive commentary from Minnesotans for Global Warming:

Peer Review of Enhanced Hide-the-Decline

During the counter-attack on Soon et al 2003, Climategate participants made serious allegations about the integrity of its peer review and the editor (Chris de Freitas) who had supervised its publication. (These allegations were investigated by the publisher of Climate Research, Otto Kinne, who cleared de Freitas in unequivocal terms – a finding that did […]

Hide-the-Decline Plus

A few days ago, we discussed the unresponsive answers provided to climate scientist Jeff Severinghaus in February 2003 when he inquired about the validity of tree ring widths as proxies due to the inconsistency (divergence) between temperature and ring widths, answers characterized by Severinghaus here as not being a “straight answer”. In first quarter 2003 […]

Direct Action at Harvard

Attention has been drawn today to Mann’s request to other Team members for suggestions as to how to take direct action at Harvard against Soon and Baliunas. Not noticed thus far is that Kevin Trenberth reverted almost immediately with suggestions and that Mann followed up on these suggestions. Later, Soon’s supervisor has a small cameo […]