If you are reading this in your climate controlled northern hemisphere room, be reminded that the people suffering this are not just going to disappear, and they will need to live somewhere, somehow, and they will be more motivated than you will ever be. If you love your "western comfort" so much, the best thing you can do is to make sure other people than yourselves can also have a bare minimum of living conditions.

There needs to be a population decline in these places where living conditions are not amenable to human existence.

Yet somehow theres over a billion people.