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Looking High And Low For Alternative Energy

Environmentally friendly concepts used to be the stuff of a small, enlightend -- and in some cases, fringe-like -- 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 working the alternative energy front.

Biodiesel

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.

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.

BioTown, USA

Eco-tourism is a growing business. The town of Reynolds, Indiana -- population 547 -- may be a good destination. Reynolds has dubbed itself "BioTown, USA." It's goal is to become the nation's first, entirely energy-self reliant municipality.

Some 155 vehicles in town are flex-fuel models. Reynolds also plans to turn all of its household and agricultural waste into electricity. The town will also be home to an ethanol plant. which will add 60 jobs. Scott Cohn visited the town.

Big Oil

You can't talk about climate change and sustainability without factoring in Big Oil and years of record crude oil prices. Maria Bartiromo speaks to former Exxon Mobil boss Lee Raymond about the exploration and development and the viability of alternative fuel sources.

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