Abstract:
The unrealistic picture of the regulation of the temperature of the earth that has led to the theory of Anthropogenic Global Warming has arisen because of a misunderstanding of how the energy arriving from the sun heats the earth. It was postulated that radiation arrives at the surface, heats it, and then the atmosphere is heated from the warmed surface by direct transfer of some of the energy by means of conduction, convection, and evaporation. The majority of the energy was thought to be transferred by radiation which was trapped by the “greenhouse gases” in the atmosphere in a layer at some distance from the surface. It was then thought to be re-radiated from this layer and equal amounts were radiated outward into space and back to the surface. The surface was postulated to be heated additionally by “backradiation” from this “blanket”. According to the progenitors of the theory of anthropogenic global warming (AGW) the surface is heated above the temperature calculated from the simplistic model used to define the black body temperature of the surface. In this note is a short description of what constitutes a black body and explains why the earth is not one and why the presence of the so-called greenhouse gases in the atmosphere leads to a drop in the temperature at the surface rather than a rise.
The detailed description outlines how the energy from the surface is transported to the level at which the radiation temperature measured from space corresponds to the physical temperature measured by the use of radiosondes and how this altitude if determined by energy arriving from the sun. It explains how the fraction of the energy arriving at the surface that is transformed into heat, and does not enter the atmosphere by physical means but leaves the surface by infrared radiation, is converted near to the surface into heat by means of the principal greenhouse gases, water vapor and carbon dioxide (CO2). The measured results of the variation of the surface temperature with the increased concentration of the “greenhouse gases,” of which water vapor contributes 95{154653b9ea5f83bbbf00f55de12e21cba2da5b4b158a426ee0e27ae0c1b44117} to the so-called greenhouse effect and carbon dioxide only 4{154653b9ea5f83bbbf00f55de12e21cba2da5b4b158a426ee0e27ae0c1b44117}, show that the temperature is lowered with an increase in their concentration rather than raised, and so if we wish to regard it as a blanket, it is an unusual one since it cools rather than heats. The idea that increasing the concentration of CO2 will warm the surface is not only wrong but has been experimentally determined to be a bit of malicious nonsense.