Oil from microorganisms could help ease the nation's energy woes.
The fourth in a series of international reports, due out tomorrow, reflects better science and more-precise models.
Moving too quickly on alternative fuels could backfire, says one expert on ethanol fuels.
Researchers find a way to make liquid fuels from waste cheaply and without the pollution produced by earlier methods.
Recent advances in battery chemistry and systems design could lead to working prototypes by year's end.
The automaker tries again, announcing an electric-drive system that can be paired with gasoline generators or fuel cells.
Congress ends without funding research programs, as the United States falls behind in alternative technologies.
To prevent massive pollution and slow its growing contribution to global warming, China will need to make advanced coal technology work on an unprecedented scale.
In a few years, China will be the world's largest emitter of carbon dioxide. Don't look for any quick and easy solution to the problem.
As its 20th anniversary approaches, what can the landmark agreement on controlling CFCs teach those who want to control greenhouse gases?