@Bluegreen:
So you expect six billion people to just give up on doing stuff overnight? Most of our jobs *require* energy. Without those jobs, there will be a lot of people living on welfare. (Some nations are already almost entirely dependent on charitable donations from other countries.)
Climate Change isn't a lie, but the mountains of fatuous bullshit it's buried under obscure the fact that our climate has been changing since the Earth cooled. Climate Change isn't news. Running out of cheap / easily-accessible fuel isn't new either. The "Peak Oil" problem might happen tomorrow or in a few generations' time, but it's not the first "Peak" the UK has ever seen: our forests were almost wiped out during the Late Medieval period as our population expanded, resulting in what could be termed a "Peak Wood" crisis.
The short-term solution is to address the worst excesses and prime the R&D pumps. The medium-term solution is push R&D into alternative, *continuous* energy sources. (I.e. not windmills and sunshine.) The prognosis for a workable form of nuclear fusion seems decent at the moment, but it's still a work in progress. In the meantime, we need something to tide us over which isn't too dirty. Nuclear fission has an undeservedly poor reputation thanks to the shoddily built Chernobyl plant, but the French seem to have this technology nailed.
Fission would bridge the gap between now and the day when fusion (or something else) finally goes mainstream. In the meantime, the pitiful amounts of nuclear waste needs to be disposed of. Using subduction zones for this purpose seems to be viable technically. This removes the final obstacle as nuclear waste material isn't particularly abundant (or even all that dangerous when handled properly) compared to fossil-fuel waste.
The UK needs new power stations *now*. We're already talking about electrifying more of our rail network. We're also seeing—at last!—the beginning of the end of petrol and diesel-fuelled vehicles. Where are we going to get the electricity to run all this?