Written by the Senior Legal Counsel of the Ozone Secretariat, this book critically examines the implementation of the 1987 Montreal Protocol on Substances that Deplete the Ozone Layer. This successful Protocol represents a dynamic legal regime that has made significant contributions to the progressive development of international environmental law resulting from innovative legal approaches, unparalleled in the history of treaty making, such as the use of framework treaties, simplified treaty amendment procedures and soft law instruments. The author addresses issues related to environmental governance, environmental financing and the non-compliance procedure. The Montreal Protocol has considerably influenced subsequent multilateral environmental agreements, such as the Climate Change Convention and the Kyoto Protocol, as they have embraced similar financial mechanisms and non-compliance regimes. As the Montreal Protocol plays an important role in the development of international environmental law, a book that specifically deals with this significant Protocol cannot fail to be of importance to anyone interested in this area of law.