bttt
CO2 is heavier than air! CO2 does NOT rise in our atmosphere and trap the heat of the sun - CO2 sinks to the ground!
BTW, the same applies to Freon, the stuff that replaced it, methane, etc., etc., etc!
Hydrogen and Helium are lighter than air, and they rise in the atmosphere, but the Hydrogen doesn't last long - it combines/burns and makes water, which is heavier than air. The Helium goes to Heaven.
Clouds are water that's about to fall to earth .............. FRegards