Environmentalists have a reputation for being self-righteous, holier-than-thou prigs. And yeah, well, they frequently are. So in the spirit of humanizing and soul cleansing and all that, we’ve asked a few greens, including writers Bill McKibben and Terry Tempest Williams, to confess their environmental sins. And we’re asking you to do the same!

Leave your deepest, darkest environmental sins in comments. We promise, you’ll feel better afterward.