As part of the 2023 Summer Lecture Series, Doug Pearsall, senior conservation scientist at The Nature Conservancy, will speak at the University of Michigan Biological Station, an 11,000-acre research and teaching campus just south of the Mackinac Bridge on Douglas Lake. Pearsall coordinates research and monitoring projects in Michigan and the Great Lakes for the global nonprofit organization, focused on addressing threats to the state’s wetlands, fisheries, forests and freshwater, such as plastic pollution, climate change and invasive species.