New cities?

what will the city of the future look like? How will we or will we have zero emissions cities? The Chinese already have one such ZEC (zero emissions city) on the drawing board. Will the US get on board? On Star Trek Voyager in the episode 11:59, Captain Janeway learns that her ancestor  convinced the last hold-out on the millenium project to give in. The project could be described as an eco-city. The city is self contained and shaped roughly like a wheel with one large spire in the centre and spokes radiating out from the ground floor of the spire and an outer ring surrounding the whole city. Or it can be described as looking remarkably like Farpoint Station to those who know the reference. Is this the direction we should go? can a ZEC be built?

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