As climate change, resource overexploitation, and pollution leave ever more visible marks, ocean ecosystems, economies, and people are all affected. With coasts on the Atlantic, Pacific, and Arctic, Canada faces a formidable challenge in building resilient, sustainable oceans and supporting the communities that rely on them. Sea Change reports on the OceanCanada Partnership, a multidisciplinary project to take stock of what we know about Canada’s oceans, construct possible scenarios for coastal regions, and create a national dialogue and vision. See Chapter 3 and 4 for our lab’s contributions.