I guess its time to show why you all are imbeciles....
First lets look at the reactivity of O2... In the graph below there are just two regions that O2 can react with energy passing through the atmosphere.
View attachment 235032
The Y axis is wavelength in nanometers. In the graph above it are the major components of our atmosphere and their reaction bands where LWIR can affect that component by absorption or emission..
View attachment 235038
We focused on outgoing LWIR. Our region of investigation was 5um to 100um. LWIR is not stopped by Oxygen and the region in the outgoing bands is less than 1% that can be affected. In a pure O2 environment the shear mass of earths atmosphere could not be warmed by outgoing LWIR.
View attachment 235040
Again, just as with O2 and Ozone, CO2 can only affect 4% of the radiation band. The amount of CO2 in our atmosphere is so minute that it is incapable of stopping outbound radiation. It theoretically affects just 4% of the total energy being emitted from the black body.
CO2 has very low energy residency time and will not warm without a secondary molecule that can warm, with which it must collide. This hypothesis was proven correct by the experiment which removed water vapor from the atmosphere.
Its amazing how many people can not grasp this simple concept.