If your city is sinking, why not make it float?

Innovative design: An artist’s impression of what the Oceanix Busan prototype being built in South Korean waters would look like. — Oceanix/Bjarke Ingels Group

MANY of the world’s largest coastal cities are sinking at alarming rates due to factors such as groundwater extraction and the weight of built infrastructure.

A potential solution is moving their residents to floating cities, if they can be built without creating a damaging ecological footprint in the ocean.