Green Options

What if you could use plants to turn industrial waste sites into fertile, productive cropland? Better yet, what if you could produce biofuels in the process? By marrying bio-remediation and crop production, a group of Carnegie Mellon University graduates hopes to do just that: produce biodiesel and ethanol on reclaimed land.

"It’s a proven technology, but in an unproven environment," said Mr. Butcher, 27. "The idea of growing energy crops is

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Encyclopedia of Life Web Site Many big ideas are born at the TED Conference (TED stands for Technology, Entertainment, Design). The conference brings together the world's big thinkers and doers to deliver talks on many topics. Every year, three prize winners are chosen and they each present one wish.

This year, biologist E.O. Wilson was the recipient of one of the TED prizes, and

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