Streets are porous root-bridges suspended 80 meters above reclaimed wetlands, allowing terrestrial wildlife uninterrupted migration corridors below human housing.
Grown by running low-voltage solar currents through seawater to precipitate limestone (Biorock), these floating cities rise naturally with the tides and desalinate water through mangrove root membranes.
Forty percent of Earth's landmass is legally owned by its own ecological AI trusts. Humans may enter only on foot, leaving zero synthetic trace while robotic caretakers silently heal century-old mining scars.
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