This unit aims to provide an introduction to the framework, concepts, sources and techniques of international environmental law, and to provide an overview of international law responses to current and emerging environmental challenges. The history and framework of international environmental law will be examined before exploring a range of topical international environmental law issues, including atmospheric protection and climate change, hazardous substances and wastes, biodiversity and GMOs, the protection of marine living resources, the protection of freshwater resources and issues concerning trade. The unit will also survey the influence of international environmental law on domestic environmental law through case studies. Overarching themes will include the interdependence of environmental issues, the effects of scientific uncertainty on international environmental regulation, implementation of international environmental obligations between states at difference levels of economic development and the need for effectiveness in implementation and enforcement.