One of the reasons I like to be outside, especially hiking in the woods, or even the mountains, is the smell of nature. It is pure. It is refreshing. And other than an occasional mucky smell, it usually smells pretty good. Every morning I run along a road and through a neighborhood subdivision. I enjoy being outside in the early morning, but the smells are just different. Car exhaust, diesel, even cigarette smoke as I run along the road. They improve somewhat in the neighborhood, but it is still not like the wilderness. Laundry, chemical fertilizer, mulch. The best days are the ones where I smell bacon cooking.