Nate Hagens is a former editor of the Oil Drum website that discusses the implications of resource limits, he founded the Institute for the Study of Energy & our Future, taught a popular class at the University of Minnesota, “Reality 101,” on the human ecological predicament, and now produces two of the most popular environmental podcasts: The Great Simplification, in which he interviews knowledgeable ecologists and resource analysts, and Frankly, his personal reflections based on what he has...