And yes, CO2 is heavier than the surrounding air, with a molecular weight of around 44. O2 comes in around 32, N2 around 30, Ne around 20, and He around 4. The only thing in the earth's atmosphere that isn't heavier than CO2 it Krypton...and I don't see any scientists bleeding out their eyeballs about how man-made Krypton is causeing "climate change."
Granted, wind has something to do with the composition of the breathable portion of the atmosphere, which has more to do with the Sun than a coal-fired electricity turbine. But if no external factors were brought into play, then yes we would have an atmosphere that would exist in stratas, much like how oil and water seperates when mixed together in a bottle.
This whole "heavier than air" thing is the reason why they use dry ice in fog machines at those Justin Bieber concerts you regularly attend, Victor. It's also one of the reasons why you don't have a lot of stuff growing in the upper elevations of mountains, and why the atmosphere is so thin on the top of K2. Mainly because O2 molecules - you know, the stuff we breate? - cannot reach all that far up into the atmosphere...and therefore don't.
jpotts wrote: