This volume offers a selection of some of the best and most interesting articles that have been written on ethics and the environment in the past two decades. It constitutes an ideal introduction to the main debates in the area, dealing with issues such as duties to future people, resource conservatism, species and wilderness preservation, the relevance of ecology to ethics, ecofeminism, and the tension between political liberalism and environmentalism. This book will be of interest not just to professional philosophers and students of philosophy, but to anyone who wishes to learn about the beliefs and principles which underlie environmentalism.