First off, mother nature is all powerfull. She balances the in-balance. Gays and lesbians will not produce kids(for the most part). Disease is always an option. but if we don't want to end up on mother natures bad side, I suggest we start issuing licenses to birth. Alot of people are in no position to support a child mentally or financially.
But because sex is the only legal drug left(That actually makes you feel good), Child birth rates will continue to rise. Our only hope is to start thinking a little more realistically. Over population will kill all of us.