I have one comment on the prairie city, which loves trees but has a hard time growing them.
We have just enacted—it's not quite through council yet, but it has passed through committee—the amount of soil volume that has to be at the bottom of a tree in streets. It's extremely important. The expensive part of an urban canopy is at the beginning of its life and at the end of its life. What we're finding is that our trees are dying a third of the way through what could be a longer life because they have insufficient soil. The technical framework that needs to be attached to the trees must be very robust.