We've spent over 100 years geoengineering the climate, and the people doing the most have known about it explicitly since the 1950s and 60s.
I mean... everything we do or don't do is engineering of some sort. Apparently cutting sulfur from all international shipping container fuel reduced the low level "contrails" (not sure of the terminology for ships) and is probably responsible for this year's spike in ocean surface temperatures. So is that "geoengineering?" Or was the sulfur "geoengineering?"
Fuck these scientists. They're almost certainly not going to be suffering from the extreme heat and weather and sea level rise and erosion nearly as much as the global poor.
We NEED to be engineering the shit out of this, complete with risk assessments and simulation and small scale tests and knowledge building. With backup plans and big red emergency stop buttons and everything.
The dumbest thing we could possibly do is just blanket ban engineering the climate. We had a chance to do that 120 years ago when it became obvious what fossil fuels were doing and would do. It's far, far too late now.