I'm along the south shore of Lake Erie, so trees are a godsend in my town in the summer. I live a block away from the main downtown in a west facing apartment. My apartment would absolutely fry in the summer if it wasn't for the massive maple tree outside my apartment shading the place. The trees downtown aren't very large, but if the city were to get rid of the on street parking downtown and focus on pedestrianizing the area, they could absolutely grow some beautiful oaks to offer shade at noon in the summer. They make being outside more pleasant, and if being outside is pleasant, people are going to walk more. My parents live in a 10 year old suburb in Houston with non-existent tree cover and it makes day time walks a

Also, just because i want to keep talking about how much i love my little walkable city, the city government recently started a program where if you have a patch of dead grass/gravel on the roadside next to your home, they will come out and plant a tree there. Residents are also able to take yard trimmings to the waste treatment plant in town and receive free mulch on a first come/first served basis.