For all you overpopulation alarmists out there that are freaking out about 8 billion people, I just like to remind you these facts.
The problem is not fitting people into homes. It is the support network they need, mostly food, roads, parking, hospitals, schools, factories, electric plants, sewage plants, water plants, etc.
@xianc78
Not really, since we use up an awful lot of it per person. Here's the only environmentalism you need:
https://www.half-earthproject.org/