Science-fictiony, but quite believeable, the Guardian takes a look at Life in 2020.

And on a similar vein, Martin at the SunPig sent along this link to an "Earth-sheltered" house in Cumbria that was featured in Channel 4's Grand Designs. I think underground housing is quite a nice idea. It reminds me of stories about how gardens planted on the roofs of city buildings could provide useful habitats. I've also admired their reed bed sewage treatment ponds.

It all sounds slightly promising. We live in hope.