My husband declares we are ruining the environment, we have too much stuff, and are using more of the earth’s resources than 5,000 people from a third-world country. He’s determined to downsize. We happen to live in a comfortable, spacious apartment. I warn him that studies conclude that putting too many monkeys in an overly confined space causes them to tear each other to pieces. He’s not paying attention. We are too materialistic, says he, who owns enough golf shirts and clubs for fifty players. I give in, hoping to get him off this kick, putting his energies back into…