Social Science for the Salish Sea, a project co-led by staff at UW EarthLab and the Puget Sound Partnership, brings together over 40 social scientists and environmental practitioners from diverse disciplines, organizations, and Tribes and First Nations in the region to outline a research agenda aimed at improving our understanding of the human dimensions of the Salish Sea. On October 4, 2018, a group of advisors and authors met at the UW to cultivate a transboundary community of practitioners and researchers and to develop a research agenda.