If all goes to plan, there will be a new town floating off the coast of Busan, South Korea, by 2025. It will be composed of hexagon-shaped city blocks that can be rearranged. The energy will be largely solar, the streets (yes, there be streets) will be mostly free of cars and when the seas rise, the town will effortlessly rise with it. South Koreans didn’t come up with this, they’re just the hosts; it’s a privately funded project supported by the UN. The hope is that it can be replicated around the world as climate change inundates coastal cities. But is it actually feasible?
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