Plus if Canada warms up, hey win win
If you like forest fires, permafrost collapse, and drought, sure.
I live in a ski resort, you insensitive clod /s
Warmer over here in the west means wetter, which means land slides and floods (plus more wild fires in drier seasons). It also means a pivot in tourism (from glaciers, ski resorts, frozen north) to well, who knows what at this stage.
Logging also becomes even less advisable (see land slides etc.).
So less "hey win win" (with an implied wink), more "hey win, lose, lose, ?".
This war has definitely had massive positive implications for the financial future of the north west passage...
But Canada has a pretty great climate apart from a bit of snow, I wouldn't take warmer at the cost of a small risk of desertification, forest fires, hurricanes, etc. Climate change is unfortunately not just in the nice and warm direction.