If you asked a scientist to create a test-tube liberal, chances are his product couldn’t hold a candle to Maria Luisa Tucker. Tucker, a new mother, is celebrating the arrival of her little bundle of joy by mooning over the “environmental impact of procreation.” Really. For a Nov. 13 piece for Alternet, Tucker asked, “Does Having a Child Make Me an Environmental Villain?” In it, Tucker outlined her “main source” of “maternal guilt:” “the mere fact that I created a person.” “Specifically,” she wrote, “an American person who will inevitably leave a large carbon footprint.” Her inspiration came from her...