This book examines the international experience with sustainable development since the concept was brought to world-wide attention in Our Common Future, the 1987 report of the World Commission on Environment and Development. Scholars from a variety of disciplinary backgrounds engage with three critical themes: negotiating environmental limits; equity, environment and development; and transitions and transformations. In light of the 2030 Sustainable Development Goals recently adopted by the United Nations General Assembly, they ask what lies ahead for sustainable development.