If it works as you allege, why don't you have any experimental evidence to back it up?
How is that not an experiment? More energy absorbed demands an explanation for what happens to it. Got one?
It is immediately radiated. CO2 doesn't trap, store, or otherwise hold any IR it absorbs. It scatters it.
POP QUIZ time. What is the most effective means of dissipating heat?
Answer, scatter it. CO2 is a cooling mechanism goob, not an insulator or a source of heat.
So you "scatter" the photons, wouldn't ~50% be back towards earth?