Part one: Dr. Craig Downs of the Haereticus Environmental Laboratory talks about the devastating findings about coral reef loss and the contribution of sunscreen chemicals to that loss, find out what these chemicals are and how to avoid them when protecting yourself from the sun. Part two: Marin/Sonoma beaches are among the finest in the world with beauty, ruggedness and biological diversity! Dr. Karina Nielsen of the Estuary and Ocean Science Center at SF State University shares her knowledge about what most of us don't notice on beaches.