1 Frontiers in Ecological Economic Theory & Application. Edited by Jon D. Erickson & John M. Gowdy. Northampton, MA: Edward Elgar Publishing Limited, 2007. 365 pp. ISBN 978 1 84376 888 3. Michael J. Radzicki Worcester Polytechnic Institute I thoroughly enjoyed reading Erickson and Gowdy‟s Frontiers in Ecological Economic Theory and Application. It is an edited volume of papers presented at the 2 nd Biennial Meeting of the United States Society for Ecological Economics held in Sarasota Springs, NY in 2003. The theme of the conference, which is standard fare in ecological economics, is that socioeconomic progress is not the same as economic growth but rather equivalent to sustainable development. The book is divided into four parts. The first presents some of the theoretical foundations of ecological economics. The second through fourth parts present the results of applied ecological economics research in the areas of biodiversity loss, climate change, and sustainable energy. Each part of the book is introduced by a short overview paper written by a scholar from the field of ecological economics. Part one is introduced by economist Herman Daly, part two by biologist Carl McDaniel, part three by biologist/climatologist Stephen Schneider, and part four by ecological economist Nathan John Hagens. The papers that follow span a variety of topics that reflect the trans-disciplinary nature of ecological economics. Although a few of the topics chosen for inclusion in the book will probably not get the aver age reader‟s heart racing, any scholar interested in ecological economics should find it interesting to read about many of the authors‟ efforts to make scientifically valid measurements of important ecological-economic variables. In terms of tenor, the book takes a distinctly unbalanced approach to the topics covered with neoclassical economics being portrayed as inferior and inconsistent with sustainable development, and ecological economics portrayed as superior and consistent with sustainable development. This is not surprising, however, given the nature of the conference and the perspectives of the authors. Herman Daly leads off part one with a somewhat standard presentation of his ideas about North-South tensions, throughput and entropy, and the optimal scale of a macro economy. His overview of the main issues in ecological economics is brief but excellent and sets the tone for the rest of the volume. In Chapter 1 Frank Ackerman, Lisa Heinzerling, and Rachel Massey present a clever paper showing what would have happened if cost benefit analysis had been used in the 1960s and 70s to determine whether or not to remove lead from gasoline, stop the building of dams in the Grand Canyon, and regulate Poly Vinyl Chloride (a