This committee will determine research needed to improve understanding of interactions and feedbacks between long-term natural coastal dynamics and development, including energy-related infrastructure, along the U.S. Gulf of Mexico coastline. The study will identify gaps in understanding among physical, ecological, and human processes; define components of a research and development program in response to those gaps; develop priorities for critical areas of research to increase understanding of long-term natural coastal dynamics in order to advance the science and help inform stakeholder decision making; and identify barriers to and opportunities for more effective communication among scientists and coastal stakeholders.