The WTO's Environmental Progress
The linkage between trade and the environment stands out as an important challenge in global economic governance. Over the past decade, the WTO devoted considerable attention to this issue and included it on the agenda of the Doha Round. In parallel, the jurisprudence on trade and the environment has experienced significant advances. This study provides an overview of the main institutional changes at the WTO and of the developments in the jurisprudence most relevant to the interaction between the environment and trade. Specifically, this study focuses on General Agreement on Tariffs and Trade (GATT) Article XX and takes note of many positive (and a few negative) features of the key Appellate Body decisions.
Steve Charnovitz, The WTO's Environmental Progress, 10 J. of Int'l Econ. L. 685 (2007)