More severe storms and rising sea levels resulting from the changing climate pose a threat to ecosystems along the U.S. coast. These include beaches, dunes, wetlands, and marshes, which provide significant environmental, recreational, and economic benefits. Practices to sustain these ecosystems are available, but are not well understood, face legal and financial obstacles, and have not been widely implemented. On January 25, 2023, the Environmental Law Institute hosted a panel of experts who explored measures and practices for sustaining beaches and dunes in the face of a changing climate. This Dialogue presents a transcript of that discussion, which has been edited for style, clarity, and space considerations.