One of the more interesting knock-ons of the opportunistic IPCC reliance on WWF and similar “authorities” is that it may compromise the ability of the U.S. EPA to argue that IPCC peer review meets the statutory standards required of EPA peer review. In this respect, I refer to the Climate Audit submission to EPA last […]
Much recent attention has been paid to the email about the “trick” and the effort to “hide the decline”. Climate scientists have complained that this email has been taken “out of context”. In this case, I’m not sure that it’s in their interests that this email be placed in context because the context leads right […]
One reviewer of the IPCC 2007 Assessment Report specifically asked IPCC not to hide the decline. The reviewer stated very clearly: Show the Briffa et al reconstruction through to its end; don’t stop in 1960. Then comment and deal with the “divergence problem” if you need to. Don’t cover up the divergence by truncating this […]
I reported here on my efforts to get the WGIII Review Editors’ comments back online together with the Lead Authors’ Responses and the Review Editors’ Reports. I had sent Patrick Matschoss, the head of AR5 WGIII TSU an open letter for him to put to the IPCC Bureau urging an open and transparent process in […]
I was one of the more industrious reviewers for IPCC AR4. In my Review Comments, I made frequent reference to Yamal versus the Polar Urals Update, expressing concern about the rationale for using Yamal rather than Polar Urals, an issue that is once again in play. Keith Briffa was the section author and can be […]
At the beginning of September, I was copied an email discussion reporting the online publication in Climatic Change of a paper by Warwick McKibbin, David Pearce, and Alison Stegman. What was notable about this paper was that it was submitted in September 2005. What for readers of this site, perhaps, was unremarkable was that it […]
As we’ve discussed before (and is well known), clouds are the greatest source of uncertainty in climate sensitivity. Low-level (“boundary layer”) tropical clouds have been shown to be the largest source of inter-model difference among GCMs. Clouds have been known to be problematic for GCMs since at least the Charney Report in 1979. Given the […]
The U.S. EPA just released (Apr 17, 2009) “Proposed Endangerment and Cause or Contribute Findings for Greenhouse Gases Under Section 202(a) of the Clean Air Act” url together with a Technical Support Document url. In Canada and most countries, governments just implement these sorts of policies without the huge regulatory process that delays everything in […]
More obstruction from the Met Office, in which they have changed their obstruction strategy. Previously they said that Mitchell had destroyed all of this email correspondence. This prompted David Holland to ask for information on the date of the destruction and on records management policy at the Met Office. Rather than answer the unanswerable, the […]
On March 31, 2008, David Holland sent a letter to Keith Briffa asking about several IPCC issues. In correspondence released from the Hadley Center, Briffa indicated his intention of being unresponsive. On May 15, Briffa sent an unresponsive reply to Holland, following which Holland initiated a FOI request on May 27, 2008 leading to an […]
The WWF and the EPA Endangerment Finding
One of the more interesting knock-ons of the opportunistic IPCC reliance on WWF and similar “authorities” is that it may compromise the ability of the U.S. EPA to argue that IPCC peer review meets the statutory standards required of EPA peer review. In this respect, I refer to the Climate Audit submission to EPA last […]