‘Climate models not only significantly over-predict observed warming in the tropical troposphere, but they represent it in a fundamentally different way than is observed’

New Paper by McKitrick and Vogelsang comparing models and observations in the tropical troposphere This is a guest post by Ross McKitrick (at Climate Audit). Tim Vogelsang and I have a new paper comparing climate models and observations over a 55-year span (1958-2012) in the tropical troposphere. Among other things we show that climate models are…

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Solar Notch-Delay Model Released

Readers may recall the contentious discussions that occurred on this thread a couple of weeks back. Both Willis Eschenbach and Dr. Leif Svalgaard were quite combative over the fact that the model data had not been released. But that aside, there is good news. David Archibald writes in to tell us that the model has…

Twenty-five Climate Models Can’t All Be Wrong … Or Can They?

From the NIPCC report: As seemingly never-ending work on developing and improving climate models progresses, there is also a seemingly never-ending set of assessments of how that work is progressing; and the study of Maloney et al. (2014) is one of the most recent such assessments, wherein its 31 authors provide a summary of projected…

The artist as climate model expert

Guest essay by Charles Battig, M.D. There are reams of publications devoted to the mechanics of computer modeling of global climate dynamics, and the predictive results derived therefrom. Mathematicians, experts in chaos theory, fluid dynamics professionals, climatologists, geologists, oceanographers, satellite-data analysts all toil away at constructing a computer model which will accurately embody these sciences…