abstract:In science fiction, floating cities are settlements that strictly use buoyancy to remain in the atmosphere of a planet. However the term generally refers to any city that is flying, hovering, or otherwise suspended in the air via any means technological or magical.
Also worth reading is Joel Achenbach of the Washington Post with a colorful view of the floatingcity that has sprung up to fight the spill, one that promises to grow ever bigger until the spill is stopped.