Thanks for re-homing this discussion, Charbucks.

I'm going to stand by my suggestion of nuclear power for electricity generation. I don't see anything wrong with it, and the resources of radioactive material we have, whilst not infinite, are very abundant on earth.

We need to consider fuel for transport. Cars, planes, trains and boats all run on hydrocarbons - all direct derivatives of crude oil distillation. This is where the possibility of fuel cells and even the electrolysis of water to burn the hydrogen-oxygen gaseous mixture produced arises. This is an area which needs a superfluity of research put into it. I'd theorise that the next alternative fuel source proposed for the aviation industry will be hydrogen-oxygen liquified fuel - that's the same stuff the Space Shuttle uses.