摘要：This work deals with the first international arbitration controversies in which environmental issues are present: Fur Seals Arbitration, United States and the United Kingdom (1893); Trail Smelter Arbitration, United States of America versus Canada (1938 and 1941); and Affaire du Lac Lanoux, Espagne versus France, (1957). The first two arbitrations, resolved before the creation of the International Court of Justice, give an idea of a first conception, a first chapter, of the changing human thought towards the natural environment, laying down, together with the Affaire du Lac Lanoux, the first principles of International Environmental Law.
关键词：litigio internacional; litigio ambiental; derecho ambiental internacional; equidad intergeneracional; el que contamina paga; responsabilidad ambiental.
