1) Steven Westcott discusses biomass fuels with John Felmy with the American Petroleum Institute, Robert Brown, Director for the Center for Sustaiable Environmental Technologies. 2) In the Origins of Life segment, Peter Berle speaks with William Irvine, Professor of Astronomy about comets. 3) Author Bruce Berger reads from his book, Almost an Island: Travels in Baja, California. 4) Peter Berle talks about the Northern Blazing Star flower which is endangered as a result of prescribed fires. 5) Peter Berle interviews Bill Nye ?The Science Guy?. 6) Glenn Busby discusses the Pennypack Initiative.