warming

The Greenest Green Fuel

Looking for a clean fuel that grows anywhere, needs only sunlight and water, and could produce enough oil to free the U.S. from its petroleum addiction? Here´s one start-up´s plan for converting oil from algae-yes, algae

Take a peak inside the Solix labs to see their oil-from-algae operation up close in our photo gallery and video â€Here it is!†Jim Sears says with a tour guide´s come-see enthusiasm.

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If We Destroy Our Planet

Will science find us a new one?

Scientists are exploiting one of Einstein's predictions to find Earth-like planets around other starsplanets that might even support Earth-like life. Let the evacuation plans begin!

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The Race to 100 MPG

Gas prices are up, fuel economy is down-but the brightest minds in auto technology are about to do something about it

Over the past several decades, the promise of the "car of tomorrow" has remained unfulfilled, while the problems it was supposed to solve have only intensified. The average price of a gallon of gas is higher than at any time since the early 1980s. The Middle East seems more volatile than ever. And even climate skeptics are starting to admit that the carbon we´re pumping into the atmosphere might have disastrous consequences. To these circumstances, automakers have responded with a fleet of cars that averages 21 miles per gallon, about four miles per gallon worse than the Model T.

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