With the approach of Earth Day, this show looks at the clean air, carbon-free case for nuclear power. And it challenges the view held by many environmentalists that the only way to save the planet is for all of us to get by with less.

Guest Michael Shellenberger is coauthor of An Ecomodernist Manifesto, which argues that human prosperity and an ecologically vibrant planet go hand-in-hand. In 2007, Michael received the Green Book Award and Time magazine's "Hero of the Environment." His recent TEDx talk is "How Humans Save Nature."