Trade and environment issues are achieving ever greater prominence in the WTO. This timely volume contains key papers on this important and highly contentious issue.There is a natural linkage between trade and environment through the use of policy instruments. But when does more trade help or hurt the environment? There is clash between the market-opening principles of free trade, as reflected in the WTO, and the environmental quality and market regulating instincts of environmentalists. This volume examines the conceptual issues involved, as well as the manner in which the subject has been handled by the WTO. It will be an invaluable source of reference for students and researchers alike.