text: In principle these cycles are sinusoidal in behavior as depicted in Figure 1. Bob Tisdale has also shown how the temperature increase of the 65-year cycle from 1975 to 1998 led to the assumption that it is due CO2 emissions because they too happened to be parallel. This has been naively extended all the way to the year 2100 and forms the basis for the climate models and the invention of the so-called climate catastrophe.