In a Thursday, April 30, 2014 photo, Lake Michigan Carferry SS Badger Capt. Jeff Curtis exits the 410-foot boat, in Ludington, Mich. When the SS Badger sets sail May 16, the venerable and historic carferry will sport new combustion controls that will enable it to burn coal more efficiently. That should result in less coal being burned and less ash being produced by the Badger. (AP Photo/Ludington Daily News, Jeff Kiessel) MANDATORY CREDIT
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