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11 clean tech innovations that can change the world

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Imagination is key

The clean technology boom seems to spread exponentially every year. These new eco-friendly inventions compete with, and sometimes surpass, their conventional counterparts. It's a reminder that the only thing tying us to old, less-than-clean industries is a lack of imagination. Here's our list of some of clean tech's most recent planet-saving innovations. (Text: Bryan Nelson)