Since the former Norwegian prime minister, Gro Harlem Brundtland, led the World Commission on Sustainable Development, Norway has played an important role in international environmental co-operation. This volume looks at how this one state engaged international regimes in order to pursue its own national goals in the following issue areas: climate change, biodiversity, ozone depletion, air pollution, marine pollution and whaling. In doing so, it offers an innovative new approach to the study of international regime effectiveness and on linkages or interactions between international regimes.