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.
Lester Brown and Senior Fellow Richard Heinberg at the the Post Carbon Institute discuss developments in alternative energy and a path towards a sustainable future in the premier episode of the Post Carbon Exchange series. Posted March 16, 2010.