Over the next 17 years or so, global trade will more than double, China will come to own roughly a quarter of the world's merchant fleet, the number of offshore wind platforms will grow a hundredfold, and the U.S. will still be the dominant naval power. So go the predictions in Global Marine Trends 2030, a collaborative effort by ship classification society Lloyd's Register, UK defense contractor QinetiQ, and the University of Strathclyde in Glasgow.