With over 25% new material, this new edition of Environmental and Natural Resources Economics offers an accessible and balanced treatment of economic theory and policy relating to the environment, as well as a thorough overview of the economics of sustainability. Intended for both students and practioners, the book has been completely updated to include discussion and analysis of the latest U.S. and international environmental policy initiatives -- such as the Kyoto Protocol--and how they affect the global economy. Fully-integrated web source linkages have also been added throughout to enable all readers to make better use of the book's own website and a myriad of other available internet resources for research and supplemental reading on this crucial subject