Mr. Worcester’s discussion [in “The Statistical Method Used to Link Climate Change to Greenhouse Gases Challenged,” published on Sept. 8,] leaves out the defining evidence of the anomaly in the statistical analysis that Ross McKitrick has pointed out in the creation of the models. Of the 23 or so major models used by governments for discussion of global warming, only one bears any resemblance to the recent historical record. That would be the Russian model. Even it reads higher than actual records. The others all grossly deviate from real temperature data, providing answers much higher than actual, and progressing in a linear fashion. Nature is never linear. Our recent natural warming/cooling cycles are about a thousand years apart. The Medieval Warming was 1 degree Celsius warmer than now while the Roman warming was 2 degrees and the Minoan 3 degrees higher. The “scientists” are using the temperature recovery from the …