Trouble by the water: Minnesota's lakes under threat

Minnesota’s iconic lakes are facing serious environmental stress. In central Minnesota, half of the natural shoreline barriers that filter runoff and protect water quality have disappeared. In the north, even the remote Boundary Waters aren’t immune — mercury contamination is a growing concern. Kirsti Marohn, Dan Kraker and Aly Clary shed light on the risks to Minnesota’s most treasured waters — and explore how we might protect them before it’s too late.