Will shifting from a GDP-driven society help solve the United States' environmental problems? In his new book, "The Bridge at the Edge of the World: Capitalism, the Environment, and Crossing from Crisis to Sustainability," James Gustave Speth, dean of the Yale School on environment and forestry, argues that U.S.-style consumer capitalism needs to change in order for any progress on the environment to occur. During today's OnPoint, Speth, a former chair of the Council on Environmental Quality and founder of both the Natural Resources Defense Council and the World Resources Institute, explains why he is unhappy with the current state of environmentalism. He also gauges the changing level of interest in environmental issues on college campuses throughout the country.