torahlovesalvation said:
I believe the "official" statement for cemtrails is geoengineering to deflect solar radiation back into space. Meanwhile, barium and aluminum on the nano scale haze the air around us. Not to mention the flakes and fibers.
That's a little more plausible than trying to directly spray chemicals to affect the population, because it gives a reason to actually spray something into the stratosphere. But plausible doesn't mean correct, since the trails we see are completely consistent with the basic physics of water vapour, there's no reason to think there is anything more to them.