Got to see this episode of Naked Science: "City Under The Sea" tomorrow on the National Geographic Channel at 7:00pm and 10:00pm PST.
"The oceans cover 70 percent of our planet. Although science fiction writers and ordinary mortals have long dreamed of life under the sea, no human has ever lived there permanently. But with the planet becoming increasingly populated, can we afford to leave such a vast space unoccupied? What if we gave ourselves 10 years to create an undersea colony where 100 families could live? How would we do it? Where would we go? In this program we develop a step-by-step approach for setting up such an undersea colony. We meet experts who believe such a bold undertaking is possible and are already developing the technology that could make it a reality."