[Fricken]

I think if hundreds of millions of people were faced with unliveable conditions, they would be strongly incentivized to move themselves. Also, it would more likely be a migration that plays out over the span of, say, a generation.

In 2020 it was estimated that 55 million people were displaced due to climate and weather events, more than 3 times the number displaced by conflict and violence. So the mass migration is already well under way.

[lmilcin]

I think you do not understand.

When a heat wave comes the people will not be able to "move" themselves.

Most of these people don't have means to do so in best of times.

[Fricken]

Most people have feet. They move by putting one foot in front of the other. People have travelled all over the world using this ancient technique.