The fuel oil that ships burn produces air pollution, greenhouse gases and waste sludge. The crew of the Premiership, a bulk vessel owned by Seanergy Maritime, collects the sludge in 55-gallon drums on board.

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The fuel oil that ships burn produces air pollution, greenhouse gases and waste sludge. The crew of the Premiership, a bulk vessel owned by Seanergy Maritime, collects the sludge in 55-gallon drums on board.