Richard Brenne, PRODUCER & MODERATOR Bill McKibben, AUTHOR & ACTIVIST Al Bartlet, PHYSICIST & POPULATION EXPERT Kevin Trenberth, NCAR SENIOR SCIENTIST & IPCC REPORT LEAD AUTHOR Brian Toon, CU ATMOSPHERIC SCIENCE DEPARTMENT CHAIR Diane McKnight, INSTAAR & CU ENGINEERING PROFESSOR Robert Henson, NCAR WRITER & CLIMATE CHANGE AUTHOR
