Ok, so i'm only imagining seeing a sea of elderly people every time i'm downtown...? I'm not saying pollution isn't a problem (duh..!), but in the greater scheme of life's hurdles it isn't exactly something i'm losing sleep over. I still see many of my colleagues mountain biking, running and playing tennis every day. If I was really worried, I would probably avoid sports that involved the lungs in that way. The fact that many of you participate in these sports suggests that the problem isn't perceived in quite the same way as the Environmentalist Wacko's see things.