Getting people to think before they decide. Limit it to 3 instead of limitless.
The problem with population control is, again, selective breeding.
We have active population control programs in the third world... guess what's happening?
The upper class and middle class have less kids. They're prosperous, and educated enough to know that having just one or two kids (or three, at most) poses the least strain on their finances and on the "environment".
The lower class, bored, restless, unemployed, and with too much copulating (pardon the expression) time on their hands do nothing BUT breed.
What this iconic picture, which highlights the Great Depression and the problems of poverty singularly fails to show is the several other children not in frame... (true story)
In other words, active population control means we are now selectively breeding for unpersuadability, irresponsibility, poverty and unemployment. Great, huh?
Education, education, education. Make people smarter, more productive and less hungry, and there's less incentive to mill out babies, which many poor families rely upon as additional income earners in the third world.
Hordes of restless, unattached males.
Actually, yes. Eating embryo soup, too, I might add.
There's no real reason to assume it's humans causing global warming? Other than the fact that it's 90% sure to be CO2 related, and that THATS the exact chemical we've been producing a lot nowadays?
Oh, of course CO2 enables global warming. So does solar activity, poor cloud production due to the low-levels of cosmic rays, algae levels (funny that it's being shown as an effect... for a while, some scientists were pointing to it as a cause), the lack of volcanic activity, methane produced by naturally rotting vegetation and bovine stomachs (hey, let's stop eating beef and raising cows!), CO2 naturally released by animals, breathing humans, forest fires (I find it ironic that California's successful forestry conservation gives them rich swathes of forest that dump millions of tons of carbon into the atmosphere every year as they burn to the ground), weather patterns and various other causes.
Clouds and the Earth's albedo are an interesting sidenote in all of this. Changes in global temperature due to sunspot activity have shown a much greater effect in slowing or reversing global warming than billions of dollars spent in legislating CO2 have.
Of course, we could remove legislations on sulfur dioxide and particulate emissions... which actually help cool the Earth in the same way that volcanic activity does. Never mind our poor lungs... it's for the good of the planet!
It's this kind of knee-jerk, unscientific thinking which started the whole CO2 hysteria. While some scientists and economists are cautioning that the net effect of such programs will not be proportionate to the money and effort poured into it, it's a popular platform that politicians use to gain power and money.
If we can't separate the science from the hype, and jump on each and every "solution" like it's "the one" (as a follower of biofuels and alternative energy news, this is so frustratingly common you'd wonder if investors had any brains at all... look, jatropha! Profit!), then we're spending billions in cash (and money is energy) on nothing.
And money doesn't grow on trees, you know.... wait... money is made from dead trees, isn't it?