anybody else irked by tiny ass posts with no explanation for their thought? seems like a waste of time, really, cause then he has to go into it more in his NEXT post so that he can cover his own ass. but he has a point. The heated smoke from the end of a burning joint or blunt WILL rise because it's heat means it has a low density; however, the smoke you spit out is only a little above the temperature of the air around you, so it will be bouyant if the pressure is low (ie before a storm)

in theory, of course