The World's Transition to Renewable Energies

[A. Secular Human]

 let's say people make solar thermal powerplants in Sahara where they use electricity to suck carbon from the air

Air is 78% nitrogen and 21% oxygen. I don't see us being able to extract a lot of carbon from it

There are already constructions made exclusively to remove CO2 from the atmosphere.

https://www.science.org/content/article/...rectly-air