6. A Pathway for Widespread Utilization of Geothermal Energy (February 11, 2009)

Published: March 17, 2009, 11 a.m.

Jefferson Tester talks about the benefits and challenges of harnessing geothermal energy, and he asserts that it is a large resource that complements solar and wind energy and is both carbon free and scalable. (February 11, 2009)