China and the EU are taking over the leadership position that the US inexplicably resigned from. China and the EU take climate change and renewable/sustainable energy technology investment and adoption waaaaaaaay more seriously than the US did. The US has been (and continues to be) actively hostile to it, save for a few contrary blips.
The most powerful climate change denialist and impediment to progress, by far, to doing something to address climate denialist just self-immolated. There's a silver lining in there.
Unfortunately (or at least ironically) the best chance we have comes from China, which has managed to maintain an ironclad grip on its internal politics and also is actually decarbonizing. The question facing us is when governments realize we’re going to need large scale solar radiation management, and who will do it first.