ships going green

GOTHENBURG, Sweden — Something unusual is happening in Swedish waters. Crews docking at the Port of Gothenburg are turning off their engines and plugging into the local power grid rather than burning diesel oil or sulfurous bunker fuel — a thick, black residue left over from refining oil.   “I always knew these extremely dirty bunker fuels were helping produce acid rain that falls so heavily over this part of Sweden,” said Per Lindeberg, the port’s electrical manager and an avid fisherman. “I was very happy when we could switch off the ships.” (more…)