The earth’s surface is only 30 percent land; 70 percent is ocean.
Jeffrey Linn, a Seattle urban planner, is using digital cartography to imagine worlds that are even more watery.
You don’t need a starship to visit them, although a time machine would be useful. That’s because Linn’s maps depict what some cities would like if sea levels went up by 80 meters, or 264 feet.
Read more here and look at these scary pictures.