Self-fueling boat sets off from Paris on 6-year world trip

PARIS — A boat that fuels itself is setting off around the world from Paris on a six-year journey that its designers hope will serves as a model for emissions-free energy networks of the future.Energy Observer will use its solar panels, wind turbines and a hydrogen fuel cell system to power its trip. The 5 million-euro ($5.25 million) boat heads off Saturday from Paris toward the Atlantic.The futuristic-looking 30.5-meter (100-foot) boat will rely on sun or wind during the day and tap into