This course provides an introduction to the principles that govern the use and management of the oceans. The oceans are vital to life, but they face increasing stress from overfishing, pollution, resource reduction, and climate change. Moreover, vast areas of the oceans are under the control of no nation, and have historically been considered open for use by all. This course provides the framework for analyzing and resolving challenges presented by the struggle to afford fair and sustainable access to ocean resources. It will also help students develop an understanding of the legal policies and doctrines relied upon to resolve disputes over the oceans. Starting with general principles contained in the United Nations Convention on the Law of the Sea, the course presents several case studies that illustrate the questions inherent in sustainable management of these resources. These case studies are likely to include the efforts to protect the Atlantic bluefin tuna, as well as the move to better manage and protect Arctic Ocean resources.