The Blackboard

Some readers may be aware that a some vocal climate modelers (and some who comment on blogs) word their descriptions of AOGCM results to suggest that results from climate model are absolutely, totally, utterly and completely independent from observations of historic surface temperatures. Yet, from time to time, (in fact rather frequently) it is possible [...]

Roger Pielke Jr. and John Tierney have recently been comparing published predictions of AGW to empirical data. In response, Gavin Schmidt suggested that comparisons should include more than 8 years, and pointed out that computations for Hansen et al. 1988 scenarios A, B, C began in 1983, as Gavin said last May, “giving us just [...]