Congratulations to your son on the well-deserved awards. With regard to pollution in ALL areas, I can tell you that this goes on for a long time. Humans are not going to leave comfort unless the danger is imminent (when the water in the pot is boiling). When I have discussed this with people of different cultural backgrounds, most say: “if we can't fight them, join them”. I in particular live half an hour from the city of Toronto on a 99% organic diet (it's a bit more expensive, but healthy). I walk a lot… The remaining 1% is my addiction to good coffee, heh, heh, heh.