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'Energy Guy' makes Columbia more efficient

Sunday, September 28, 2008 | 6:01 p.m. CDT; updated 5:00 p.m. CDT, Tuesday, September 30, 2008

COLUMBIA — With his knowledge about the art of conservation, David Mars simply wants to help save Columbia's residents money. As the star of the Columbia Channel's "Conservation Tips," Mars teaches residents not only how to cut down on energy usage, but also cut down on their energy expenses.

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