Norway is on a roll lately. Last week, the Scandinavian country announced it would ban cars entirely from the city center of Oslo, and now it’s announcing plans to build a fleet of plug-in hybrid ships to service its marine industries. Marine shipping is a major global pollutant. In fact, one large container ship is responsible for as much atmospheric pollution as 50 million cars each year. But much of the country’s national and international commerce depends on shipping. So a more eco-friendly low-carbon emission fleet was on demand in a country proud to power 90% of its electricity from renewables. The plan envisions a large fleet of offshore vessels, including cargo, container, tankers, passenger ships, and fishing boats. It will even develop a green port facility that uses less energy than traditional ports.