This is a somewhat restated version of an earlier post seeking to understand the differences between Hansen Scenarios A and B. Rather than trying to clarify matters here, Gavin Schmidt posted over at Tim Lambert’s. In this morning’s post, I correctly identified that the difference between Scenarios A and B for periods up to the […]
Roger Pielke Jr reports that he has posted up a comparison of Hansen, IPCC, and observed trends 1990-2007 here: http://sciencepolicy.colorado.edu/prometheus/archives/climate_change/001330temperature_trends_1.html and suggested that I start a thread (done!).
In 2006, Willis Eschenbach digitized Hansen A,B and C scenarios to 2005 (see here ). I used these values together with my own visual digitization extension to 2010 in my recent post. Subsequently Lucia drew my attention to a digital version of the NASA data placed online at realclimate here , referenced in a realclimate […]
In the various disputes over Hansen et al 1988, Roger Pielke Jr and NASA apologist Eli Rabett (who has been said to be occasional NASA contractor Josh Halpern) have each attempted to disentangle the forcing projections implied by Hansen et al 1988 – Pielke here and Rabett here for CO2 and here for other gases. […]
I’m making some changes to this post in light of comments from Gavin Schmift.
Update (Jul 28, 2008): On Jan 18, 2008, two days after this article was posted, RSS issued a revised version of their data set. The graphics below are based on RSS versions as of Jan 16, 2008, the date of this article, and, contrary to some allegations on the internet, I did not “erroneously” use […]
Continuation of Unthreaded #29 Can I recommend however, that instead of using this thread, commenters should register and use the new CA Forum under the relevant headings. The same rules of conduct and topic apply on the forum of course, but it should be a lot quicker and easier to follow individual discussions than on […]
Excellent post by Pielke Jr here
In several recent posts, we’ve been reviewing the provenance of the radiative forcing estimate of about 4 wm-2 and the logarithmic form for estimating climate response to increased CO2 levels. This has led on the one hand to several primary references, including Lacis et al 1981 and, on the other hand, to references to realclimate […]
In earlier posts, we observed that Al Gore’s An Inconvenient Truth claimed that “Dr Thompson’s thermometer” confirmed Michael Mann’s hockey stick, but, when analysed, what Gore described as “Dr Thompson’s thermometer” merely proved to be Michael Mann’s hockey stick mis-identified. No wonder it resembled Mann’s hockey stick – or, to use the phrase more common […]
Climate Audit 