> And that will likely happen in such quantities that the northern and southern nations will not be able to prevent it. I think it depends. US and Europe for e

> And that will likely happen in such quantities that the northern and southern nations will not be able to prevent it. I think it depends. US and Europe for example have quite "defensible" (against civilian migrants) southern border. What might happen, though, are some conventional or mixed wars for cooler territory. > Not to mention the element of "we must help everybody, even at the expense of ourselves" people who will assist the invasion of refugees. I think the opinion would turn around. With the gradual increase in temperature, you'll get gradually more migrants, which will either shift the Overton window or increase the preferences of (far) right parties.