The natural world is coming under increasing strain. It is estimated that by the year 2050, two entire Earths will be required to meet the human demand for natural resources. How we manage those resources will therefore become an increasingly urgent issue. In this course, we examine the legal structures and policy debates surrounding such hot-button issues as endangered species, protected lands, and water rights. We will explore the role of federal constitutional and statutory law, as well as state common law, in shaping the protection and exploitation of the natural world.