Forum Discussion
rexlion
May 18, 2018Explorer
Back in the 1950s, physicists measured transmissions of various wavelengths through our atmosphere. The CO2 molecule absorbs infrared radiation at two specific wave bands. The long wave (LWIR) band, around 14.5-15.5 microns, is the more significant of the two since it is the band where most of earth's heat energy is radiated (and it's 5 times as wide as the MWIR band which CO2 absorbs). Those 1950s measurements found 100% absorption of this band over 300 meters distance in our atmosphere. In other words, 100% (all) of the heat energy that CO2 can absorb is absorbed in only 300 meters at sea level.
The idea that adding CO2 to our atmosphere could increase absorption of IR (heat) radiation has thus been disproven over 60 years ago, for one cannot obtain more than 100% absorption.
The idea that adding CO2 to our atmosphere could increase absorption of IR (heat) radiation has thus been disproven over 60 years ago, for one cannot obtain more than 100% absorption.
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