[ido]

Population growth rates world wide have already plummeted in recent decades and continue to do so as more developing countries industrialize.

Current predictions point to stabilizing world population at 9 billion and the starting to slowly drop. In the most developed countries we have seen lower than replacement rates for a long while now.

[r00fus]

Amusingly, this is the population posed for 24th century earth in the movie "Star Trek: First Contact". Nice to know they didn't pull the numbers from thin air.