This book provides a comparative analysis of environmental regulation in multi-jurisdictional legal and political systems, focusing on the United States, the European Union, and the international community. Each of these systems must deal with environmental interdependencies that cross local borders, in some cases creating regional problems, such as acid deposition, ozone type smog, and pollution of shared water bodies. Some transjurisdictional environmental problems are global, including stratospheric ozone depletion, climate change, and the loss of biodiversity. Other environmental problems, however, are localised in their effect on health and the environment.

This book examines patterns of environmental regulation in the European Union and four federal polities--the United States, Germany, Australia, and Canada. Daniel Kelemen develops a theory of regulatory federalism based on his comparative study, arguing that the greater the fragmentation of power at the federal level, the less discretion is allotted to component states. Kelemen's analysis offers a novel perspective on the EU and demonstrates that the EU already acts as a federal polity in the regulatory arena. In The Rules of Federalism , Kelemen shows that both the structure of the EU's institutions and the control these institutions exert over member states closely resemble the American federal system, with its separation of powers, large number of veto points, and highly detailed, judicially enforceable legislation. In the EU, as in the United States, a high degree of fragmentation in the central government yields a low degree of discretion for member states when it comes to implementing regulatory statutes.