Banshee16 said:Well, we're not simply running out of fuel. There are millions of gallons still left. What is getting expended is the reserves that they found like 30 years ago. There is likely still a lot of oil out there, but it will take investment to find, and tap.
Possibly more than just investment. Some of that oil will be in places where drilling for it may be an environmentally unsound manuver, and things quickly get sticky in such cases.
But the problem is that the hydrogen itself requires energy to create. How is it done? By passing electricity through water.
At the moment, yes. There's been some promising research done on other methods. Passing slighly warm alcohol (which can be produced through biological processes) over certain catalysts can produce hydrogen, for example.
Unless we move to entirely nuclear/solar/wind power, which is unlikely, as the latter two aren't the most efficient, and the first one creates pretty dangerous byproducts, and the anti-nuclear protesters did a pretty good job of ensuring that nuclear generators aren't seen in a very positive light.
A note - some of our problems with nuclear reactors come from our own policy. One of the big questions that arises when the subject of nuclear reactors comes up is "What do we do with the spent fuel?" The stuff is both long-term radioactive and chemically toxic. Nasty.
What they don't tell you is that the spent fuel can be recycled, and more energy extracted from it. The resulting waste is far, far less nasty. During the Carter administration, they made such recycling illegal to help prevent terrorist acess to the materials. The longer the chain of hands the fuel must pass through, the more likley the fuel will fall into the wrong hands, you see. Perhaps at some point our need for energy will exceed our fear, and this recycling ban will be lifted.