The Energy Xchange, an independent producer of podcasts, recorded a 1-hour conversation on energy of
Scott W. Tinker – director, Bureau of Economic Geology,University of Texas at Austin;
Steven E. Koonin– former undersecretary for science, U.S. Department of Energy
Jesse H. Ausubel – director, Program for the Human Environment, The Rockefeller University;
Podcast and transcript are here. Faster to browse the text than listen.