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John Christy's Misleading Graphs from 2016

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It's been over a decade, but occasionally I still see people sharing the graphs John Christy's presented as testimony in 2016 as "evidence" that models can't accurately predict observations. The graphs have been heavily criticized at RealClimate (see  here  and here ) for very good reasons.  Sometimes these graphs get dressed up with a different aesthetic while keeping the comparison exactly the same. The version below is from a Heritage Foundation "report" published in April of 2026, but the authors didn't even bother to update observations to 2025. They just ignore the last 10 years of observations, possibly because none of the authors had the competency to update the observational data to today. Since Benestad  and Schmidt  have done such a thorough job debunking these types of graphs, I don't see any need to duplicate their efforts, but here's a brief summary of the what's misleading about these graphs: Christy chose comparisons of a...