Volume of oceans = 1,335,000,000 km^3 [1] Volume of earth = 1.08321e+12 km^3 [2] So oceans only occupy 0.00123% of the Earth's volume. There's a lot of room be

Volume of oceans = 1,335,000,000 km^3 [1] Volume of earth = 1.08321e+12 km^3 [2] So oceans only occupy 0.00123% of the Earth's volume. There's a lot of room below us. [1]: http://ngdc.noaa.gov/mgg/global/etopo1_ocean_volumes.html http://ngdc.noaa.gov/mgg/global/etopo1_ocean_volumes.html [2]: http://nssdc.gsfc.nasa.gov/planetary/factsheet/earthfact.html http://nssdc.gsfc.nasa.gov/planetary/factsheet/earthfact.htm...