This work, commissioned by the Netherlands Ministry of Housing, Physical Planning and the Environment, analyzes, in the light of the history of the 1992 Climate Change Convention and of precedents, the aims of the joint implementation provisions of the Convention and the controversies that have arisen about them. It combines a comprehensive study of legal aspects with an economic analysis and a report on possibilities of joint implementation between the Netherlands and Poland. The book was published at a time when the Convention was entering into force (March 1994). It should be of interest not only to academic lawyers and economists with an interest in international environmental developments, but to environmentalists generally and to all those in industry and in public service, nationally and internationally, who are likely to get involved in the practice of joint implementation under this Convention.