‘Epps and Green have submitted an excellently written, innovative, and well-balanced study that deserves a wide relationship. Their conclusions are drawn based on a comprehensive and well-documented examination of existing WTO law and practice of the GATT panels and the Appellate Body. The authors do not limit themselves to a purely legal analysis, but also include the necessary considerations of political theory and economy. Above all, they deserve the credit for having rejected the traditional antagonism between trade and protection of the environment.’