Understanding how climate change will affect ecological processes is essential to protecting Great Lakes water quality and ecosystem health. Impacts such as warming temperatures, changing precipitation patterns, decreased ice coverage, and alterations to water levels are being observed across the basin, in some cases exacerbating existing ecological stressors. This session will share findings from the first State of Climate Change Impacts Report for the Great lakes basin, as well as information on efforts to better understand and predict the impacts of climate change.