U.S. Army buys 4,000 electric vehicles—the biggest acquisition in the country
With gas prices going through the roof, yesterday's jalopy could be today's blue-chip used ride
Many systems are near their capacity
Biologists can now create organisms that have never before existed—including designer bacteria that turn sugar into fuel
Use this handy tool to find out how much oilâ€”and moneyâ€”you could save by making the switch to ethanol.
Country club meets sierra club, in hybrid heaven
American visionaries, cranks and con men have long sought the simple key to boosting the efficiency of the gasoline engine....
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