NPR correspondent Jennifer Ludden profiled some of my work in procreative ethics with an article entitled, “Should we be having kids in the age of climate change?,” which summarized my published views that we ought to consider adopting a “small family ethic” and even pursuing fertility reduction efforts in response to the threat from climate change. Although environmentalists for decades have worried about overpopulation for many good reasons, I suggest the fast-upcoming thresholds in climate change provide uniquely powerful reasons to consider taking real action to slow population growth.