The complete interview is nearly two hours long and is therefore broken into two segments. The first installment (link) discussed a broad view of history as related to ecology, energy and societal complexity. The development of permaculture in the context of 1970s economic woes was reviewed. David explains why he created FutureScenarios.org as an alternative to the predominant beliefs in either business as usual or a smooth steady state transition towards "sustainability," as well as the simplistic notion of a "Mad Max" type collapse.
This second installment covers four "energy descent" scenario groups that correspond to potential variation in the severity of both peak oil and climate change. Scenarios are also viewed as choices, with certain factors, such as social scale and resource availability, influencing the descent path.