Spotted this piece on the BBC today - Sir Richard Branson is apparently going to hand over all the profits from his travel businesses to go to environmental research, via a company called Virgin Fuels - in the region of three billion dollars. Looks like they're starting off with ethonol etc sourced from biological processes - makes sense, as that could easily replace diesel in his trains, for example. Some prop drivel aircraft (see here) can run on a bio-diesel blend already, so with a bit of research cash it could be used for shorthaul flights too.
Well done Richard Branson, for having the courage and the cash to make a stand on the environment. Lets hope that a few more multibillionaires have the same idea; clearly the governments aren't interested so as usual scientific progress is up to a few people with the will and the cash to do it.
Now if someone could bung an odd million or so towards equipment for the Great Ormond Street neonatal unit, I'd be really happy :-)