Alter demographics.

I know this will degrade into a LOL NIGGER vs LOL CRACKER fagflame, but I don't care. If you could alter demographics in the world which permit civilisation to continue for generation after generation afterwards, what would you change to make the world a better place?

With permanence in mind.. So you could change race, culture and sexual orientation, but you cannot change it to the point where there are not enough men or women to produce the next generation or kill everyone at a certain age inciting revolt and ending the state of things.

I would either
1))I would make thirdworld countries value education and have a school system like ours where children -have- to go to school, and -have- to learn something.
I was talking to a woman I work with (I don't remember where she's from though in the south americas), and mentioned that "my father is from Austria so he speaks german" and she said she didn't know that people in europe spoke anything but  english, french or spanish.
In her mind russia, belgium, norway, italy, germany, hungary, and greece, had no national language. No one had ever told her otherwise so she just assumed.

Or 2) make it so that there was a "common tounge" that everyone could speak passably. Like in lord of the rings.