US senators ask for government investigation of tax credit program for coal

BOSTON -- Three U.S. Democratic senators have asked the investigative arm of Congress to evaluate a $1 billion-a-year subsidy for burning chemically treated refined coal, after research has shown that some power plants using the fuel produced surging amounts of mercury and smog instead of cutting pollution.

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Sen. Sheldon Whitehouse of Rhode Island, as well as Sens. Elizabeth Warren of Massachusetts and Sherrod Brown of Ohio, on Friday requested the Government Accountability Office investigate the tax credit program for refined coal, according to a letter viewed by Reuters.

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