The Big Green Bus

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PHOENIX -- What can you do with a little ingenuity? Some students from Dartmouth built a green bus that's powered  by vegetable oil and solar panels.

David Peterson -- one of 12 students on a cross-country road trip -- shows Scott Pasmore how they use leftover fry oil to run the bus, which used to require diesel fuel. While vegetable oil makes the bus go, solar panels on top power all of the appliances -- a TV, an air conditioner, a fridge, outlets and lights.

"We're traveling around the country for very little money as far as fuel goes," Peterson said.

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