From the adverse impacts of warming and acidification on warm-water corals to the combined effects of acidification and erosion on seafloor topography, disentangling the drivers of change facing our ocean systems is critical for improved policies that can support them. However, to date, such field research into multiple stressors and interactions that impact ecosystems is often limited. This session is aimed at highlighting advances in the study and attribution of regional climate impacts, as well as their associated costs to both human and ecological systems. Studies that either examine costs through economic analysis or through an analysis of ecosystem services that are not measurable through economic analysis are welcome. This session also encourages research that considers combined hazards and risks, rather than specific impacts or vulnerabilities in isolation.  The session welcomes exploration in methodology or research design to attribute the relative influence of multiple factors over time (e.g. socioeconomic and climate impact interactions and feedbacks).