Summary: After ten years interviewing the best and the brightest in the environmental and climate community, time to say farewell to "The Green Front" on PRN with Dr. James Hansen, the pioneering former NASA scientist who has become one of the world's most powerful voices urging action to confront the calamity of carbon pollution. We also speak with another leader in the climate movement--Michael Brune. The Executive Director of The Sierra Club joins us with his thoughts on where we need to go next.
