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11 clean tech innovations that can change the world

By: Bryan Nelson on April 5, 2010, 10:23 a.m.
Clean tech innovations: Mercury-free, energy-efficient lighting

Photo: RTI International

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Mercury-free, energy-efficient lighting

RTI International researchers have invented breakthrough lighting technology that is five times more energy efficient than incandescent bulbs and does not contain mercury, making it more eco-friendly than CFLs. Best yet, the lighting gives off a warmer, more aesthetic light than CFLs. Once the bulbs hit the market, consumers will have no good excuse left to use traditional incandescents.