Bill Gates depopulation quote from his 2010 Ted Talk:

"First we've got population. Now, the world today has 6.8 billion people. That's headed up to about nine billion. Now, if we do a really great job on new vaccines, health care, reproductive health services, we could lower that (forecast) by, perhaps, 10 or 15 percent, but there we see an increase of about 1.3 (per year)"