The reason is that many world envoirements become such a places you can't live anymore.
Huge demand to get UK and usa canada real estate while it's cheap still.
Richer people will start rushing to go usa and uk those places will be fine.
worse locations will be near Equator the sea level will go higher and bigger waves.

So the UK and USA canada can't build so fast so imagine how high the prices will go it will be rare that you own property that's the fractionar ownership will be only future for real estate that's for sure. 
That's why only those who have RWA cryptocurrency will have decent life - we not even talking about WEALTH but in order to have decent life you need to have RWA wich will be cooked for you blackrock off course the only GOD of world mr.FINK the big Fink.

People don't take life seriously they never take seriously when someone try to tell them something.
But the joking is over and it's time to organize your life different and wars will be litte problem once envoirement and climate issues starting.