I am a total layman when it comes to geoengineering. I'm pretty skeptical that we can actually (as a race) pull off something of that scale without badly screwing something up. It reminds me of cane toads in Australia.
There are only 3 options from what I understand though. Geoengineering, carbon capture, and emission reduction.
David Yager had an interesting piece on it this AM.
https://energynow.ca/2021/08/why-the...thillssteel.ca