You lot really have just missed the biggest and simplest resolution to this whole energy issue?
Just use less!
It's not rocket science is it?
If we are going to run out in 20 years then halve our consumption and it lasts 40 years, but oh noes, heaven forbid that we turn off a lightbulb in an empty room, or walk to the corner shop, or drive our cars in the dark using our headlamps only instead of a mass of planet burning streetlights.
I get so sick off people banging on about the energy crisis yet "NO-ONE" (myself included) is taking any significant steps to do anything about it.
I'm affraid a few windmills, solar panels, and a house full of low energy lightbulbs won't be enough to save the world.
My 1961 vw beetle did 35mpg, my 2001 vauxhall zafira does 35mpg.
0% fuel efficency progress over 40 years, so ask the question why?
Simply because they had no reason too, so why bother.
It's only now that cars are becoming more fuel efficient but it's 20 years too late, and are you really going to stop driving to paintball sites across the country until your forced to stop?
Until we are up $hit creek without a paddle, nothing worthwhile will be done!