That's the only thing I could think of too, but then thought... if smokestacks (et. al.) are dumping it up there quite above tree heights, that's just gone, rig

That's the only thing I could think of too, but then thought... if smokestacks (et. al.) are dumping it up there quite above tree heights, that's just gone, right? I'm not trying to be argumentative, I really don't know how this stuff works.