California, Massachusetts, Oregon, Colorado, New York Lead Clean Tech

Clean Technica: We now have more insights into how the clean-tech economy is doing from this year’s sixth annual US Clean Tech Leadership Index. The index, prepared by Clean Edge, a research and indexing firm founded in 2000, tracks and ranks clean-tech activities in all 50 states and the largest 50 metro areas in the US. It provides a powerful tool for regional comparative research, aggregating industry data, and deep, data-driven analysis of the American clean-energy market.

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