[Mike]

Heh, just discovered something called Eco-Cement. So the CSCS could actually continuously sequester carbon from the atmosphere during construction!

Anyone heard of this stuff before?

[NoMoreLies]

Do we need much land, or in fact any land at all? That would depend on how the city is being built. It may just be a collection of Libertarian Ocean Colonies with an overriding organization keeping people's rights safe.

100 million population? Given that the population is expected to peak at 9 billion by 2050, that is quite a high number.

As for power, how about Geothermal? Perhaps building it by an extinct volcano would make tunneling easier. With cheap enough power, a population in the trillions could be supported, limited only by how much space is available in the Earth and comfort.

[Redsand11j]

Ireland seems to be the kind of place we would like to replicate.

[Redsand11j]

I have looked into northern africa, that was pretty much the first place I looked. Most of the 5 countries on the Mediterranean have highly populated coastlines or poor human rights records.

[Mike]

Hmm, not sure. I don't see any major advantages that this region would have over others... Although I can see from Google Earth that the area is quite flat, and it does have a nice coastline...

If we're going to explore other locations; What about somewhere along the coast of North Africa? That would put it close to Europe. Building the city closer to established markets might make good economic sense; although it might not foster self-sufficiency to the same degree, and would therefore represent less of the 'clean-slate' idealism.

- Mike