Liam Young's Planet City could tackle climate change by housing 10 billion people in a single metropolis

The entire population of the earth could live in a giant sustainable city occupying a fraction of the earth's surface, freeing the rest of the world for rewilding and the return of stolen lands, according to a new movie by architect Liam Young.
Young's fictional Planet City movie proposes a hyper-dense, self-sufficient metropolis housing 10 billion people.
Built according to the principles of the circular economy, it could be built on 0.02 per cent of the planetary surface, taking up an area "ro