While oxygen is a potent and fatal chronic poison (but also more useful than toxic), it is likely that the reduction in pollution at high altitudes is simply due to lower population which implies less pollution.
Truly, the healing power of markets can salvage even the most reprehensible. Sounds like a cool solitaire game. Top comment at the bottom article was legit though:
It’s amazing what people can do when they’re not being tortured to death!
But don't do anything other than getting scared (or "culturally enriched"), as daddy goverment will take care of all of this once you elect the right man to reactivate the old NAZI death camps.
