I’m fairly certain we will resort to this type of geo engineering soon - cutting down energy consumption is not a viable path, it’s just not going to happen. Quite the contrary, humanity’s energy consumption is likely to grow a lot.
I agree with you about keeping carbon in the ground - but it will only happen for economic reasons in reality (ie. solar being cheaper than oil and gas) and the transition will take decades.
I hope we don’t hit irreversible feedback effects in the next couple of decades!
I know every generation feels special - the pinnacle of humanity, a special time - but this time around it really feels like what happens in the next 20-30 years can have make it or break it consequences for later generations (not just climate, also chemical pollution, risk of nuclear/biological weapons use and possibly AI - though that could also solve a lot of our problems)