FILE- In this Tuesday, July 4, 2017 file photo, the Energy Observer, a former race boat turned into a autonomous navigation with hydrogen, sails on the Seine river in Paris. A boat that fuels itself is setting off from Paris Saturday, July 15, 2017, on a six-year round-the-world journey that its designers hope serves as a model for emissions-free energy networks of the future. (AP Photo/Kamil Zihnioglu, File)
