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CNBC U.S. Contributors

Terry Tamminen

Contributor

Terry Tamminen, former secretary of the California Environmental Protection Agency, is president of Seventh Generation Advisors, a strategic advisor to Pegasus Capital Advisors and the CEO of the Leonardo DiCaprio Foundation. He is also the author of "Cracking the Carbon Code: The Key to Sustainable Profits in the New Economy." Follow him on Twitter @terrytamminen.

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