Why do we plant big trees under power lines?

Big ice storms, pests, drought: there are lots of threats facing urban trees. In a special two-part episode, one Montrealer asks how the city is making sure our trees can withstand climate change…and won’t take out power lines when they fall. And a Pincourt school bus driver asks what’s happening with all the trees being cut down for the new Île-aux-Tourtes bridge?