So even
a pure nitrogen atmosphere would have it's «greenhouse effect».
Lets imagine that it had
a pure nitrogen atmosphere.
Not exact matches
Then they rotated the tube for 20 minutes in a dry,
pure nitrogen environment (Titan's
atmosphere is composed of 98 percent
nitrogen).
Nick asks what would happen if the
atmosphere consisted of
pure nitrogen.
So an
atmosphere of
pure nitrogen replacing Earth's mixture which H20 is most important in this regard.
I'm sure you will also find that this lapse rate would be the same for an 80 %
pure nitrogen and 20 %
pure oxygen
atmosphere, because such lapse rate is a function of the acceleration due to gravity.
I'm a Lukewarmer - Skeptic who accepts that H2O, CO2 and other so - called «greenhouse gases» in the
Atmosphere do cause the mean temperature of the Earth Surface and
Atmosphere to be higher than they would be if everything was the same (Solar radiation, Earth System Albedo,...) but the
Atmosphere was
pure nitrogen.
The lapse rate for ANY
atmosphere (even
pure nitrogen or oxygen) would be calculated the same way — without «allowance» for any GHE.