The problem with VHEMT, of course, is that only the smart and responsible people who think about the ecology, future of Earth and similar stuff, will follow the advice and stop breeding.

In the meantime, the unwashed masses (distinct from the washed masses, who aren't all that bad when you get to know them, honestly) will be breeding like rabbits on Viagra.

So what we need is an organisation by the smart and responsible people to trick and cajole the dumbasses into getting sterilization, with offers of money and McDonalds dinner coupons if necessary.