[lmilcin]

The problem is that you can't easily move hundreds of millions of people.

When the weather becomes lethal, these people are going to die.

The only realistic solution is building infrastructure to let people live through the worst of the weather.

If it is as bad as it is described in the article, I worry about long term prospects of stable economy and progress, what with people occupied mostly with trying to survive another hellish day.

[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.