This is an important book precisely because there is none other quite like it.

'This original discussion breaks new ground by thoroughly analyzing ethical and aesthetic values, centering on the concept of ecological integrity, that apply intrinsically to nature and that govern our rightful use of the environment. Those who have been waiting for an exciting account of the inherent structure and worth of ecological systems in relation to environmental policy will find it in this book.'-Mark Sagoff, Director of the Institute for Philosophy and Public Policy, University of Maryland at College Park.