Get used to it. There are places in the world where it's that temperature at night plus high humidity and no one has air conditioning. Eventually people might only be able to live in Antarctica excepting of course it will have melted done to the actual ground.
I really hope it's not too late to prevent that, but if we wanted to colonize Antarctica, we'd pretty much have to get rid of the ice anyway so we can grow plants there and access the natural resources laying underground.
Otherwise, we'd be stuck eating krill and penguins, and I don't know how I'd feel about that. Vegetarians surely would not like that.
Interesting that your reading is “get used to it you lazy, weak Canadians” and not “a country that is seldom in the news except when you want to make a joke about the cold is now in the news because of the heat”. It makes for a striking argument to illustrate global warming and climate change.
Unfortunately it will change nothing, at least nothing significant enough to prevent destruction. Those who profit monetarily or politically from global warming will continue to ignore it, or ridicule those who do not.
Even if Antarctica becomes temperate and eventually pleasant to live on, climate change doesn't change the number of sunlight hours you get in the winter
