(My thanks to IntLawGrrls for the opportunity to contribute this introductory post)
Finding common ground between the need for sustainable development and economic development is no easy task. What is the connection between tuna, dolphin, and climate change mitigation? Connecting the dots in the context of environmental labeling schemes is a World Trade Organization panel report,
US—Measures Concerning the Importation, Marketing and Sale of Tuna and Tuna Products (US-Tuna II) (September 2011), now on WTO appeal.
As described
here, this WTO case, brought by Mexico against the United States, concerns the safety of dolphins that suffer from
purse-seine fishing of tuna in the Eastern Tropical Pacific region, off the western coast of Mexico and Latin American countries. This is a form of fishing, used in the Eastern Tropical Pacific region, that consists of placing nets over the areas where tuna swim. Dolphins tend to swim near the school of tuna and get caught in the nets. Dolphins suffer as a result, and the mortality rate is high.
The U.S. government, in response to consumer outrage with these methods, has tried to deal with this problem since the late 1980s. The United States and Mexico attempted to resolve their differences, after an earlier WTO dispute concerning tuna fishing and dolphin safety, through the
Agreement on the International Dolphin Conservation Program,initiated by the Inter-American Tropical Tuna Commission. The U.S. government also implemented a dolphin-safe label to be placed on tuna products sold in the United States.

The Dolphin Agreement, which entered into force in 1999, has its own labeling scheme. It is considered less stringent than the U.S. scheme (right), since it does not focus on the setting on dolphins method but rather on the injury impact to dolphins.
(image credit) After much litigation and the 2007 decision of the U.S. Court of Appeals for the Ninth Circuit in
Earth Island Institute v. Hogarth, vacating the Department of Commerce finding that the Dolphin Agreement standard would meet U.S. objectives, the U.S. government retained its more stringent labeling scheme.
The U.S. label is not a required label in order to sell tuna products, including imports, in the United States. However, the majority of the large U.S. distributors of tuna products do require the use of the label in order to sell their own tuna products. According to Mexico, this practice has affected the ability of Mexican tuna producers to sell their products in the United States and is in turn, trade restrictive and in violation of the
General Agreement on Tariffs and Trade, and the
Agreement on Technical Barriers for Trade. The latter agreement specifically deals with domestic regulations intended to protect human health, animal or plant life, as well as the environment.
In its 2011
Tuna II report, the WTO panel, while recognizing the U.S. legitimate objectives of dolphin protection and providing consumer information in this regard, decided for Mexico. It found that the U.S. dolphin-safe label was more trade restrictive than necessary to pursue the U.S. objectives.
Several interesting legal issues are raised by this case: