[Perndog]

Ahem, ye unenlightened ones..

1) Hydrogen is not a fuel source. Energy from oil is used to extract hydrogen from water, and the hydrogen is then burned, producing less energy than the conversion process. Fuel cells are an energy storage and transfer medium only. In short, hydrogen has nothing at all to do with the issue.

2) Oil is not the only source of energy we use, but it is the cheapest, most abundant, most technologically viable, and most used. It accounts for a very large percentage of worldwide energy production, and if oil prices rise rapidly no other energy source can make up for that percentage because they are all either a) not economically feasible or b) not technologically possible.

I'm reserving judgment on the issue because at my age and financial status there's not much I can do to prepare myself for it. I think it's more than paranoia, though (please consider their sources and also do a search for rebuttals), and we'll find out for certain in a few years.