Anyone who claims geoengineering is solarpunk is a capitalist shrill that sneaked in to try to destabilize the movement.
Geoengineering is the worst idea. There's whole books about how bad of an idea it is.
There's better solutions to the climate crisis that won't cause the shocks to ecosystems, poison the air, and harm us in the long-term.
Project Drawdown has over a hundred solutions that don't use shitty geoengineering, and the studies to show that the ideas do indeed work.
Way better to:
1. Cease all oil and coal NOW.
2. Replace with solar power, wind power, geothermal, etc. hell even nuclear is better at this point.
3. End planned obsolescence and allow right to repair, which would mean ending consumerism entirely. Endless growth is impossible and is killing us all and thus we must kill that idea.
4. Return the land to the Indigenous and engage in Indigenous land caring projects, which are proven to actually safeguard the land better, prevent forest fires better, and decrease CO2 output drastically.
4. Shift all funds from military crap to sustainability, caring for the people programs, and community programs instead.
5. Public transportation needs upgraded and funded. End the use of cars (or limit them to specific areas or decrease the need for them in other ways).
6. Remove CO2 from the atmosphere through cultivated seaweed farms, sequestering it in rocks, cultivated forests, restoration of wetlands, etc. (This book talks about this: https://fulltext.versobooks.com/projects/after-geoengineering )
This book also digs into the disastrous ideas of geoengineering and why we should adopt better strategies: https://fulltext.versobooks.com/projects/half-earth-socialism
There's a ton of other solutions too that would work a million times better than fucking sulfur dioxide.