60yresult

Models overestimate 60 year decadal trends

Guest essay by Clive Best Marotzke & Forster(2015) found that 60 year trends in global surface temperatures are dominated by underlying climate physics. However, the  data show that climate models overestimate such 60 year decadel trends after 1940. The recent paper in Nature by Jochem Maritzke & Piers Forster ‘Forcing, feedback and internal variability in global temperature…

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Where the complex climate models go wrong

By Christopher Monckton of Brenchly Joe Born (March 12) raises some questions about our paper Why models run hot: results from an irreducibly simple climate model, published in January in the Science Bulletin of the Chinese Academy of Sciences. To get a copy of our paper, go to scibull.com and click on “Most Read Articles”.…

Figure 3  Illustration from RealClimate Post

On Steinman et al. (2015) – Michael Mann and Company Redefine Multidecadal Variability And Wind Up Illustrating Climate Model Failings

Guest Post By Bob Tisdale For the past few years, we’ve been showing in numerous blog posts that the observed multidecadal variations in sea surface temperatures of the North Atlantic (known as the Atlantic Multidecadal Oscillation) are not represented by the forced components of the climate models stored in the CMIP5 archive (which were used…

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Are Climate Modelers Scientists?

Guest essay by Pat Frank For going on two years now, I’ve been trying to publish a manuscript that critically assesses the reliability of climate model projections. The manuscript has been submitted twice and rejected twice from two leading climate journals, for a total of four rejections. All on the advice of nine of ten…