The theory of dangerous anthropogenic (man-made) global warming was invented in the early 1980s and describes Earth as some virtual planet where temperatures have oscillated +/- 0.6C around the mean of 14.0C since the 1880s. All temperatures below 14.0C (13.4C to 14.0C) were declared ‘normal’ by a clique of climate scientists, while temperatures between 14.0C to 14.6C were deemed ‘abnormal’.
In effect, all life on this virtual planet exists at a total range of 1.2C. However, all the ‘evidence’ for global warming is based on a purely theoretical number called ‘global average temperature,’ which is yet another proxy thermometer used by all climate scientists and related papers published since 1980.
However, the temperatures of air actually measured by real thermometers vary between -70.0C and +50.0C, with a total range of 120.0C! The travesty of it all is that the notion of a global average temperature has been used by the climate community in the last 30 years without showing any scepticism in the validity of its use, and despite the fact all other sciences and the general public use thermometers as a measure of temperature.
In my first paper on the subject of air temperature, Butina 2012, I showed that it is impossible to differentiate annual temperature patterns of the 1800s from those in the 1900s and 2000s. Furthermore, it was clearly shown that the ‘hockey stick’ graph scenario published by Mann et al., in 1998, cannot be found in daily tmax/tmin data and that the ‘hockey stick’ scenario is a simple artefact of this non-existent global average temperature applied as if it was a ‘thermometer’. It must follow that any model that per se uses global average temperature as an input has to be wrong.