The northern parts of Russia and Canada are above the Arctic Circle. How many people choose to live with constant cold?
Canada has more coastline than any other country, but most of it is above the Arctic Circle, encased in ice year-round. However, maybe global warming will free up some of that. Or maybe plate tectonics will send both Russia and Canada to the equator and the United States to the South Pole. Who knows.
My point is that we need to start thinking in terms of settling our differences and pulling together to save our planet from the ravages of exploitation, pollution and constant squabbling about what parts of the world belong to whom.