Enter Neoline, a French start-up with an ambitious solution. Led by a small group of experienced captains of “ro-ro” (roll-on, roll-off) ships, the company is taking a new approach to shipping by bringing in the old. It has designed a sailing cargo ship powered almost entirely by wind. Using the inexhaustible power of marine wind in its 14,000 square feet of sail, the “Neoliner” has the potential to reduce greenhouse-gas emissions on ocean crossings by 90%.