Sails will probably survive for another thousand years, because humans are greedy and wind is free. As long as corporations can save a buck on fuel, they will.
New super-economy class of cruise ship passenger just dropped.
No money to afford a spot on the climate refugee cruise hyper-ships? Pay your way by turning the screw and paddling! Nutrient cubes included in package, so long as you stay in the tail.
Giant kites could pull ships across the ocean – and slash their carbon emissions (www.cnn.com)