Actually, I agree with the poster who suggested sterilization. I simply do not see enough people being high-minded enough to take the hit. Politics and power aside (and thereby at least one remove from reality), are we capable of taking on our biological imperative intellectually enough to circumvent it? And on the subject of killing off everything before we off ourselves, I don't think it should come to that-if we are better than the rest of the animal kingdom. Gods aside, I wonder whether we can show this level of moral development on the grand scale.
Trying to update my sig ...