We will probably end up needing to reduce solar flux. It’s the only thing that can save us. That’s why bill gates was planning on putting reflective aerosols in the atmosphere. That effort is to my knowledge the single most important effort relating to global warming. And people reject it. If we die we will certainly deserve it.
Remember, we can spread reflective dust at L1, too. Reflective in the IR, so plant life won’t be hit. You don’t hear about solutions very much in this atmosphere of doom worship.