A new light-guiding optic combines low cost with high efficiency.
France installed electric-vehicle charging stations nationwide during the 1990s.
An "adaptive" engine promises to make ethanol more competitive.
A versatile new process for making biofuels could slash their cost.
Frances Arnold is designing better enzymes for making biofuels from cellulose.
The law, to be signed today, will help renewable-energy businesses and improve efficiency.
The Congressional stimulus bill could help create a new, advanced battery industry in the United States.
Pollutants emitted as a result of corn biofuel production could have serious impacts.
GM's retiring product chief symbolized the auto industry's environmental defiance.
The hamster in this video is wearing a generator that turns mechanical energy into electrical current when the hamster runs or scratches. The two graphs on the device show current and voltage.