The documentary "Living Downstream," based on the book by ecologist and cancer survivor Sandra Steingraber, will be shown. The film follows Steingraber during one pivotal year as she travels across North America, working to break the silence about cancer and its environmental links. After a routine cancer screening, she receives worrying results and is thrust into a period of medical uncertainty. We begin two journeys with Steingraber: her private struggles with cancer and her public quest to bring attention to the urgent human rights issue of cancer prevention. The film also follows invisible toxins as they migrate to some of the most beautiful places in North America. We see how these chemicals enter our bodies and how, once inside, scientists believe they may be working to cause cancer. Kamyar Enshayan, Center for Energy and Environmental Education, will lead a discussion following the film.