If so many people are concerned about the environment, why do we still behave in ways that harm it? Many environmentalists will quickly argue that people just do not care or need more information. Professor of Environmental Studies Elizabeth R. DeSombre here argues that these answers are often wrong or incomplete. By considering research from a range of disciplines she is looking for a fuller explanation of why we behave the way we do. Only then can we hope to change how people achieve their goals in less destructive ways. And that, she daringly concludes, does not even require people to care about the environment.