Most of the projects we have shown here are single family dwellings out in the country; at least Hobbiton was a village. However, TreeHuggers know that if we are going to beat climate change, it takes a city. There are a few designs for underground cities on the boards, including an earthscraper in Mexico city that got a lot of press a couple of years ago. Given that Mexico City is built on a lake, it seemed like it might be a bit damp. I preferred the one shown above,
a new type of building for the contemporary metropolis. Instead of constructing another skyscraper it examines the benefits of an underground complex with a central void that introduces light and ventilation to every space.
More in TreeHugger: Earthscrapers: Is Going Down Instead Of Up A Greener Way To Build?