1.) Host Bruce Robertson talks with Lester Brown of the World Watch Institute about their recently published state of the world report as well as Brown's belief in the need for an environmental revolution. 2.) Robertson talks with botanist Scott Hoover about his idea to convert unused military bases into tropical conservatories in order to foster biodiversity. 3.) Robertson talks with filmmaker Larry Hutt about his recent project about Aldo Leopold, one of the founders of the environmental movement.