There's lots of things we could do macro-engineering-wise. However, I suspect no country is willing to have a go and get the blame if it just cocks things up even more. If Donald Trump gets in, I think the impetus to do anything at all will be killed stone dead as he's on the side of the climate change deniers.
The only way to satisfy the delusion is to explore space and colonize it. The old superstitions are dead and boring. Earth must evolve.