The Turanor PlanetSolar, the world's largest solar-powered boat, travels on the Seine river next to the Eiffel tower in Paris, Sept 10, 2013. PlanetSolar, a catamaran powered exclusively by solar energy, completed the first solar-powered trip around the world on May 4, 2012 after travelling over 60,000 km (37,282 miles) in 584 days. [Photo/Agencies]
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