This casebook takes a very broad view of environmental law, encompassing the regulation of private and public land use and protection of wildlife as well as pollution control and remediation. It provides sufficient breadth for any introductory environmental or natural resources law course. It also strikes a balance by focusing in detail on those portions of the statutes covered that raise particularly interesting or important conceptual issues. Throughout, it highlights perpetual controversies such as the nature of human relationships to nature and the appropriate extent of individual control over natural resource use. The Fifth Edition includes problems that help students develop and test their facility with the materials in the text and the concepts underlying those materials. The new edition will also have new chapters on international environmental law issues and on enforcement issues.