David Levy: On "Cap and Trade", to limit green-house gasses!

David Levy of U. Mass. Boston explains how the Cap and Trade System to limit green-house gasses, works. His effort to promote this in Massachusetts have been a success. He explains the dangers of failure as well, in this entertaining and informative video.

To see these videos and more go to my Blip site at:
www.whatweshouldknow.blip.tv

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