The tree line is moving pole-wards thanks to global warming; the gain is less than what’s lost by the desert line moving pole-wards, but it’s something.
Good luck cramming a few billion people above 55 or 60 degrees latitude
Realistically, you need less than 1m² of terrain per person if you stack them in high enough buildings. Look at how China is doing it.
The tree line is moving pole-wards thanks to global warming; the gain is less than what’s lost by the desert line moving pole-wards, but it’s something.
Realistically, you need less than 1m² of terrain per person if you stack them in high enough buildings. Look at how China is doing it.