Senate Minority Leader Mitch McConnell (R-KY) offered an amendment to S. 493, small business reauthorization legislation officially titled the SBIR/STTR Reauthorization Act of 2011, to repeal the scientific finding by the EPA that greenhouse gases endanger human health and the environment, to permanently block the EPA from reducing greenhouse gases under the Clean Air Act, and to undermine fuel economy standards.  This radical amendment would jeopardize public health and the environment, and increase our dangerous dependence on oil.  On April 6, the Senate rejected three other anti-environmental amendments--sponsored by Senators Jay Rockefeller (D-WV), Debbie Stabenow (D-MI), and Max Baucus (D-MT)--to weaken or delay the EPA's ability to regulate greenhouse gases under the Clean Air Act and then proceeded to reject the McConnell amendment by a vote of 50-50 (Senate roll call vote 54).  NO IS THE PRO-ENVIRONMENT VOTE.  On April 7, the House passed H.R. 910, which is identical to the McConnell amendment (House roll call vote 249).  At the end of 2011, the EPA's ability to reduce greenhouse gases under the Clean Air Act remained firmly intact.