http://www.kqed.org/.stream/anon/radio/quest/2008/09/2008-09-01-quest.mp3
Concern over global warming and rising gas prices has just about everyone, including presidential candidates, touting biofuels. Taking the energy from plants and making a gasoline alternative to run our cars has great promise but there are huge problems to solve. The next answer may not come from Saudi Arabia but from a UC Berkeley lab, a Silicon Valley start up or a local researcher working in the jungles of Costa Rica.