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Atmospheric Absorption
An objective review of atmospheric absorption is all that's required to disprove CO2 forcing
The atmospheric absorption spectrum is known
- It has been measured and correlated to theory
- Water vapor contributes about 2/3, CO2 is 1/3
Relatively transparent window from 8μ to 14μ
- Weak ozone absorption in the middle
- 7.5μ CH4 line on one side, 15μ CO2 line on the other, water vapor continuum absorption throughout
Notes:
Water vapor absorption is far more variable, relative to concentration, than any other greenhouse gas. It has both strong discrete lines, like CO2 and CH4, and a continuum of lines spanning the entire range of wavelengths.
A common error made by AGW proponents is mixing up the frequency and wavelength representations of black body radiation. If you naïvely convert one to the other by scaling with the speed of light, the CO2 line appears in the middle of the nominal emission spectrum, rather than along one edge. This is incorrect because emission spectrums are energy density functions, where the energy density per unit wavelength is not linearly related to the energy density per unit frequency.