According to Dr Ferenc Miskolczi, increases in CO2 levels have not increased the global average IR (longwaves) absorbing power of the atmosphere.
Our atmosphere, with its infinite degree of freedom, is able to maintain its global average infrared absorption at an optimal level. In technical terms, this “greenhouse constant” is the total infrared optical thickness of the atmosphere, and its theoretical value is 1.87. Despite the 30 per cent increase of CO2 in the last 61 years, this value has not changed. The atmosphere is not increasing its absorption power as was predicted by the IPCC.
In theoretical radiative transfer, the absorbing power of infrared active gases are measured by the total infrared optical depth (TIOD). This dimensionless quantity is the negative natural logarithm of the ratio of the absorbed surface upward radiation by the atmosphere to the total emitted surface upward radiation.
With relatively simply computations, we show that in the last 61 years, despite the 30 percent increase in the atmospheric CO2 concentration, the cumulative greenhouse effect of all atmospheric greenhouse gases has not been changed – that is, the atmospheric TIOD is constant.
According to the most plausible explanation of the above fact, the equilibrium atmospheric H2O content is constrained with the theoretical optimal TIOD.
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