Sun-powered boat sets off to research Gulf Stream

In La Ciotat in the south of France, a very special boat is undergoing maintenance in a shipyard. Pascal Goulpié welcomed euronews aboard the PlanetSolar, the only boat which has sailed around the world using only solar power. It's a big vessel: 30 metres long and it generates its own energy from more than 500 square metres of solar panels. Having been round the world once, the boat is prepa...
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