AAaaahhhh! Chemtrails!!!
(If this doesn't bring out all the tinfoil hat brigades, I don't know what will.)
As it has already been posted, there is the question of what will happen somwhere else. At the scale they are working now, probably nothing much, but it seems they have bigger plans.
Anyone up for a round of unintended-consequences-bingo?
Biting the hand that feeds IT
