Ever since I started writing as Mommy Greenest, I’ve noticed people avoiding me. Not my close friends, obviously. But the casual friendships—those afternoon coffee invitations that turn into weekend playdates with wine? I’m getting less and less of them. I’ve heard, “Oh, don’t let Rachel see that,” as a plastic water bottle is shoved into a purse, and “She had fries—don’t kill me!” as my daughter is returned home from a playdate. They think I’m the eco police.