It would be a relatively easy task to compile a lengthy list of model deficiencies and failings, but because I appreciate the fact that progress in science is incremental, I prefer not to do it. (realclimate.org)
«Prior analyses have found that climate models underestimate the observed rate of tropical widening, leading to questions on possible model deficiencies, possible errors in the observations, and lack of confidence in future projections,» said Robert J. Allen, an assistant professor of climatology in UC Riverside's Department of Earth Sciences, who led the study. (sciencedaily.com)
In addition, a variety of climate model deficiencies, related to the simulation of one or more of these physical processes, can distort models» climate change projections. (giss.nasa.gov)