A couple hours on Keith Street tonight yields 5 more trees (with a couple more possible) - riding home I did notice some nasty odours in the air, almost like paint thinner, and pretty strong too. Not sure if it is a coincidence or not, but when I got home I see there is a smog advisory in Ontario and Hamilton is having some of the worst air:

Obviously, a few more trees here and there aren't going to scrub the air clean, but a lot more trees will contribute to better air quality overall. 

Thank you to all the residents in Keith who have signed up for a street tree - you are laying the foundation for a better neighbourhood!