Hans Jelbring -Ph.D Climatology, Stockholm University, M.Sc, Royal Institute of Technology
Since temperature conditions within an atmosphere are determined almost exclusively by thermodynamics, it may be difficult to speak in the future of a warming up effect in mankind's habitat by higher trace gases contents, such as CO2, in the atmosphere.
Proportions of so-called " greenhouse gases ", CO2 (mainly) and also O3, N2O, CH4, have at most insignificant effects on the temperatures at the ground level of an atmosphere. Accordingly fluctuations of the proportions of the above mentioned gases in the atmosphere can have only smaller, i.e. practically none, effects.