An Ecologist's Investigation of Cancer & the Environment

As we celebrate the 40th Anniversary of Earth Day today, what do we really know about how our impact on the ecosystem affects our own well-being? We’ll spend this hour with Sandra Steingraber, biologist, writer and author of “Living Downstream: An Ecologist’s Personal Investigation of Cancer and the Environment” (Da Capo Press, 2010). Steingraber is also featured in the new documentary film “Living Downstream” (The People’s Picture Co., 2010).