I just got back from a Church event celebrating the installation of our solar panels
. That reminded me of this Ray Kurzweil prediction
Within 5 years the exponential progress in nanoengineering will make Solar power cost-competitive with fossil fuels.
Of course, solar is getting an assist here from rising fossil fuel costs. But cost-efficient solar will be very cool. With GM's plug-in hybrid, the Chevy Volt, coming out in a few years, we should be well on our way to getting away from fossil fuels. Not a moment too soon. I assume other companies have plug-in hybrids on the way as well.