I'm more optimistic than ever. The past few decades have been an absolute revolution in the economics of solar, wind, and storage. They are both getting cheaper

I'm more optimistic than ever. The past few decades have been an absolute revolution in the economics of solar, wind, and storage. They are both getting cheaper than fossil fuels and scaling their production levels to just barely replace our carbon-emitting energy system with a carbon-free energy system on the schedule we need it. The biggest hurdles will be traditional powerful economic forces resisting the disruption of cheaper, cleaner technology eating their lunch. This will be a biiig problem in places like the US. But once we have clean, cheap electricity and storage, a lot of the other problems become so much easier. A lot of chemical processes will need to be sorted out, like ammonia for fertilizer and concrete and aviation/shipping fuels, but all these will be far easier when we have the cheaper form of electricity. We are in such a better place than we were a decade ago. There is tremendous reason to have hope, all we have to do is stay the course and speed our pace.