http://www.america.govclimate_change/photo.html.rss http://www.america.govhttp://america.amgovcms.iip/climate_change/photo/defining-cap-and-trade Cap-and-trade programs harness the forces of supply and demand to change industrial practices and meet environmental goals. http://www.america.govhttp://america.amgovcms.iip/climate_change/photo/defining-cap-and-trade Mon, 20 Apr 2009 12:14:02 -0400