Blood. We've said it many times. The greenies want to kill your babies. They don't want you to have babies. They don't want any people besides themselves.
Another proof is a study that Steve mentions in Green Hell Blog: "Reproduction and the carbon legacies of individuals" authored by Paul A. Murtaugh and Michael G. Schlax.
Steve quotes the Oregonian:
Some people who are serious about wanting to reduce their "carbon footprint" on the Earth have one choice available to them that may yield a large long-term benefit - have one less child.It's bad enough to have these types lurking around, but even worse that the laws in support of bad-green initiatives might make more people see even more red (as in red figures in the financial statements). The WT has a report of a government study that shows that the US Congress bill on global warming could do more harm to employment, especially if (worst case): technology doesn't materialize and other countries refuse to cooperate on offsets. (H/T: ST)
Good luck to us all!