Well, let's say we use sulfur. For the sake of argument, let's say it's not the EU, but some private SV-funded org.
So, what is the legal/geopolitical liability for that? What if >99% scientific consensus says that that org's upper atmo sulfur injection led to the most insane monsoon/desertification half-century in 1 billion's people area, in known history? What then?
What if the EU's geoengineering dropped Russian temps by -2C on average? Do you realize the geopolitical b.s. that would start? Forget the fake NATO bullshit, now they have a real argument!
We live on one tiny globe ffs, we need to agree on this shit.
By agree, I mean we need to allow risk to be diversified, like we need a global risk pool for geoengineering, and we better get on that soon!
It sounds like it's a huge problem, doesn't it? Well, one of the benefits of giving all the power to around 3000 billionaire dudes is that this is a far smaller number to get to agree on something.
Instead of multi-billion citizen democracy, and all the issues that involves... we just need to convince 3000 dudes.
Is this actually a potential benefit of wealth & power concentration? It really seems like it is!