Climate change has many clean solutions lol. Just none that anyone gives a fuck about enacting. We'll deal with it post singularity (if we even care then)
Then the open question simply becomes how to make humans give a fuck.
It's not the type of problem where a useful solution can be verified in Lean. Which makes LLMs a lot less good at solving that type of problem.
One possible path is human extinction. I guess with current alignment problems, it may be the chosen path. :|