If the world really does get flooded like in Waterworld, energy supplies will be scarcer than ever. So we'll need this craft, the world's largest solar-powered boat, with 5,382 square feet of solar panels.
The ship, measuring 102 feet long and almost 50 feet wide, took 13 months to build in the German city of Kiel. It'll have its formal launching in April, and skipper Raphael Domjan hopes to sail it around the world in 2011. Images by AP. [Associated Press]