Members of the United Steel Workers in  joined dozens of others calling for the California Air Resources Board to reconsider the state's pending cap-and-trade program for carbon emissions, during a hearing Thursday, Sept. 20, 2012,  in Sacramento, Calif.  The board took testimony from experts and the public on the the cost to businesses and consumers  with the implementation of AB32, California's landmark greenhouse gas emissions law. (AP Photo/Rich Pedroncelli)
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