ROBERT F. KENNEDY JR., activist, environmental attorney, and author, has spent most of his career suing people who pollute water. He helped found Hudson Riverkeeper, and after they won some cases they bought river patrol vessels to increase effectiveness. The model is being repeated in organizations worldwide. He is president of the board of Waterkeeper Alliance, and from 1986 until 2017, was as senior attorney for the Natural Resources Defense Council (NRDC). For more than thirty years, he was a professor of Environmental Law at Pace University School of Law (now professor emeritus). Kennedy co-hosts Ring of Fire, a nationally syndicated American radio program, and has written or edited ten books, including two New York Times bestsellers and three children’s books. He’s also an excellent public speaker.