The lecture reviews the legal and economic strategies that can be used to manage coastal development. Over half of the United States population lives in coastal areas and will be affected by sea level rise and more intense storms. The lecture looks at the conflict between property rights and efforts to protect coastal ecosystems through the use of eminent domain to create national seashores. Barrier islands such as Fire Island National Seashore and Cape Cod National Seashore are used as case studies; a variety of strategies have been employed to manage these constantly moving islands. The lecture also discusses the role insurance plays in coastal settlement patterns; changes in insurers' policies in high-risk coastal areas could change the way people settle in coastal regions.