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Going Green: New Energy

Environmentally friendly concepts used to be the stuff of a small, enlightend -- and in some cases, on the fringe -- group of people. But very quickly in recent years, the tide has turned. More and more people and companies are going green. Here's a look at some companies and technologies.

When Green Isn't Gold

Bio-diesel companies are re-examining their expansion plans, with some companies delaying projects as profit margins narrow Higher costs for soybean oil - a major source -- is one problem. As Jane Wells reports, even the National Biodiesel Board admits it has "dampened some of profitability in the industry."

The Heat Is On

A recent study by MIT says a concept called heat mining -- or, enhanced geothermal energy -- could provide 10% of the natioon's power. Ormat Technologies uses it to provide power for the city of Reno Nevada. Scott Cohn has the story.

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