"Decades ago, those guys in Zero Population Growth said the planet was critically overpopulated at 3.5 billion. Guess that shows them."Bill Cardassian
"At least we humans are doing a better job than those ants."Carl Turner
"Thank God. I was wondering how we were going to staff all those new Old Navys, Targets and Barnes & Nobles."Ben Magadan
"Six billion? And you know where all of them are? In the goddamn checkout line in front of me, that's where."Alexander Ormond
"And of those six billion, only 10, maybe 11 tops, are cool."Jill Eppard
"Nothing is more precious than teeming, overpopulated, resource-destroying human life."Felicia Mott
Last month, the world's population reached the six-billion mark. What do you think of this landmark?