Briffa’s new paper on Yamal is online today here, together with Supplementary Information here. Yamal has been a longstanding issue at Climate Audit. The new article appears to be their long awaited response to criticism from Climate Audit (though this criticism is not referred to anywhere in the aticle.) In resisting FOI requests for their […]
Yet another propaganda essay masquerading as a scientific paper has been published (SI here) in the journal, Environmental Research Letters. The latest entry, Quantifying the Consensus on Anthropogenic Global Warming in the Scientific Literature, written by a team of activist bloggers led by John Cook of the antithetically named Skeptical Science blog, attempts to further […]
I’m listening to a presentation by PAGES2K authors sponsored by Nature: http://blogs.nature.com/ofschemesandmemes/2013/05/02/npg-journal-club-how-has-earths-climate-changed-in-the-past-2000-years-npgjclub#comment-1503 Started at 11 am Eastern. 11:30. Open for questions. I have submitted the following: Can you explain the decision to label the article as only a “Progress Article”, rather than a Research Article? Nature’s definition of Progress Articles http://www.nature.com/ngeo/authors/content_types.html says that such articles […]
John Cook, whose crush on Lewandowsky continues unabated, asked various blogs, including Climat Audit, to direct readers to another online survey. Lucia has discussed the survey here. The links to the survey from SKS here is http://survey.gci.uq.edu.au/survey.php?c=1R9YT8YMZTWF and from Rabett hereis http://survey.gci.uq.edu.au/survey.php?c=II7WP4R4VRU7. More IDs are available at Lucia’s. It is easy enough to access both […]
Kaufman and paleo peer reviewers ought to be aware that the recent portion of varve data can be contaminated by modern agriculture, as this was a contentious issue in relation to Mann et al 2008 (Upside Down Mann) and Kaufman et al 2009. Nonetheless, Kaufman et al 2013 (PAGES), despite dozens of coauthors and peer […]
Darrell Kaufman, lead PAGES2K author, has promoted varvology for Arctic temperature reconstructions. Kaufman et al 2009 introduced varves into multiproxy reconstructions. Kaufman et al 2009 unwisely used the contaminated portion of Korttajarvi and other Finnish data upside down, but promptly corrected the error. PAGES2k expanded Kaufman’s 2009 network to 22 series, adding a number of […]
In a recent RC post entitled “Ice Hockey” and a recent Nature article, Steig and coauthors have introduced a novel and very baroque “hockey stick”, one without a blade. A true Halloween of horrors: in addition to Gergis’ zombie hockey stick, the bladeless Hockey Stick of Sleepy Hollow is now at large. The appearance of […]
This is a cautionary tale, about a mystery that had an unexpected explanation. It’s not intended as a criticism of the scientists involved, and the problem involved, although potentially serious, actually had little impact on the results of the study concerned. However, I am hopeful that mathematically and computing orientated readers will find it of […]
The PAGES2K article to be published tomorrow will show eight regional reconstructions, which are plotted below. In today’s post, I’ll try to briefly summarize what, if anything, is new about them. Antarctica: This is a composite of 11 isotope series (mostly d18O). It includes some new data (e.g. Steig’s new WAIS series) and some long […]
A commenter observed that the forthcoming PAGES2K received over 50 pages of review comments from one reviewer. One wonders what he had to say about the PAGES2K South American network which has some very odd characteristics. Here is a list of proxies with a couple of interesting features highlighted. First, note that the “proxy” network […]
