Responding to pdq -- I've always thought it would have been far more equitable for Canada and the US to have split the continent on an east-west divide instead of a north-south one. We could have run a line approximately through Manitoba, straight south. Then each country would have a share of miserably cold climate, miserably hot climate, well-matched resource bases, etc. But I would want Canada to get the western half, for the climate I prefer.