There are millions of people who would move to a friendly anywhere over whatever shithole they're currently in.

The problem is that most of the decent places to live do not want refugees, especially refugees very different from the natives. This is a severe problem given the massive number of refugees -- which is about to get a great deal larger as climate change forecloses more and more territory.

How much of Australia has to burn, how often, before it becomes effectively uninhabitable? How often do coastal cities have to flood before living in them becomes untenable? We are about to find out.