] Global warming is now advancing so swiftly that only a
] massive expansion of nuclear power as the world's main
] energy source can prevent it overwhelming civilisation,
] the scientist and celebrated Green guru, James Lovelock,
] says.

Something like this. I refuse to believe that it can not be done safely. Lovelock is a pretty interesting character, and he seems to agree. Fusion would be nice, but has the same safety issues. Really. Fission and Fusion is /where the energy is/ (in the universe). Maybe gravitation, but we don't know enough about how that works. All the other power technology is secondary or tertiary -- solar is just distance fusion, fuels are just stored energy from a previous fission, fusion or gravitation process. Why shouldn't we cut out the middle lossy processes, if we can?