Did you know? The heat in the upper six miles of the earth’s crust contains 50,000 times much as energy as found in all the world’s oil and gas reserves combined. Despite this abundance, only 10,500 megawatts of geothermal generating capacity have been harnessed worldwide. For more information view the text and data in Chapter 5 of Plan B 4.0: Mobilizing to Save Civilization.
World Policy Journal managing editor Christopher Shay and World Policy Institute senior fellow William Powers talk with environmental activist Lester Brown, founder and president of the Earth Policy Institute and the author or co-author of over 50 books. On the release of Brown’s latest book, Full Planet, Empty Plates, they discuss how demographics, climate change, and resource depletion are leading to a future of devastating food shortages, and why the developing world is far from ready to pick up the slack. Listen and get the full transcript here.