Yes, your right that is another problem. Trying to get it out from the ocean floor!
But, in another light, I was watching the Science Channel here at home and I saw someting even more amazing!
Fusion Power!
Fusing atoms together to create plasma (like what is found on the sun). The best part about it is, powering a Fusion Powerplant you need Hydrogen, 100% Clean and Earth Friendly!
Another upside is, there are no side effects whatsoever, unlike Nuclear Plants that have radiation, and a reactor that could blow! Also, it is 100 times more efficent than Nuclear Power and a TRILLION times more efficent than all fossil fuels!
The scientist in charge of the operation said : "With the water it takes to fill a normal bath-tub, one man could power everything he could ever need; house, light, heat, food for 30 years."
A little science fact for everyone here :
The energy in the sun is equivalent to 77 Million atomic bombs going off EVERY SECOND. One second worth of energy from the Sun could power the entire planet for hundreds of thousand of years!