(I) With shipping predicted to increase threefold within the next 30 years, there are plans for a zero- emissions ferry. (II) It will catch the wind through computer-controlled sails covered by solar cells to generate extra electricity. (III) The vessel will have a main hull surrounded by four side hulls, cutting drag. (IV) This will also eliminate the need for ballast water, which can have a negative environmental impact. (V) Shipping is one of the cheaper ways of transporting goods across the vast oceans of our planet.