I have received emails from readers who have said that they were emotionally impacted by the books, and they feel they are more environmentally aware and energized to do more. So that's hopeful to me. It is at least evidence of what I'm trying to do - trying to convey very intense emotional experiences by being very close in on character points of view to make you feel it in your body. That's one way to get the point across, by evoking a visceral response.