Warren Karlenzig, President of Comment Current Inc.

Warren Karlenzig, is founder and CEO of the sustainability consulting firm Common Current,(www.commoncurrent.com).

Mr. Karlenzig has worked with nations, the State of California, major cities, and the world's largest corporations developing policy, metrics, strategy and critical operational capacities for 20 years. Clients have included the White House (Clinton Administration), The US EPA, US Department of State; The California Dept. of Resources; and the counties of Riverside and San Bernardino, California.

Mr. Karlenzig is author of the first and largest U.S. city sustainability benchmarking study, How Green is Your City? (New Society Publishers, 2007) and Blueprint for Greening Affordable Housing (Global Green USA, 1999).

He was co-author of the City of San Francisco’s official Sustainability Plan ("Economy and Economic Development" section, 1997) and has appeared in media including The Wall Street Journal, CNN, CNBC, the BBC, Forbes, The New York Times and The Washington Post.

Mr. Karlenzig combines his sustainability expertise with a deep background in knowledge-based IT strategies and systems, having devised global knowledge management architectures for Chevron, as well as one of the largest open-sourc e knowledgebases for regional and local government sustainability practitioners. He has a Bachelor’s degree from the University of Illinois and a Master’s degree from Naropa University.