At first, it looked like a sunset… when I noticed that the sky was a rusted orange. It took only a few breaths to realize the bonfire smell was the drifting product of faraway wildfires. …In the early 1990s, I worked as a tree planter in northern Ontario. …I was driven in part by the idealistic view that planting a tree was always going to be better than not planting one. In retrospect, this wasn’t true. Forestry experts understand that a monoculture of trees — like we were planting has made wildfires more likely, and much worse. …Black spruce is often found in a mix with trees like aspen and poplar, which are full of moisture and provide a natural resistance to fire. But as a report by the Forest Practices Board of BC pointed out, “Large homogeneous patches of forest are more likely to lead to large and severe wildfires.” [to access the full story a NY Times subscription is required]