Don't forget that no matter how hot the planet gets, the angle of Earth's rotation is not going to change. Canada might get warmer, but it will still receive completely different patterns of sunlight to the United States - and, of course, crops need specific light conditions to grow efficiently, not just specific temperatures.

So just because Canada is getting warmer that doesn't mean we can necessarily move all our food production further north and keep going as normal.

We're screwed.