Ask HN: How do I make the largest positive climate impact with dev/CTO skills?

I am running an indie SaaS company and I intend to continue that work for next 2-5 years. However, it's becoming clear to me (especially after becoming a father) that I want to do something that is good for the climate. So I am spawning a background thread in my brain that will ponder what that means in the long run.

I can't do politics even if that is possibly the most important factor. I don't have any skills and I certainly don't have the desire. I also don't know anything about physics or chemical engineering etc. I think those are skills I could obtain but say I want to capitalize on the developer/CTO skills that I have amassed over two decades, where should I be working to maximize my impact?

I am slowly educating myself on renewable energy, battery tech, carbon capture and things like that. There are so many frontiers and since everything needs software, I feel that I should be able to help.

Should I create a company/NGO that creates software for a sector? Or should I try to join something existing and what would that be?

Alternatively, where should I start looking? Is there a publication or podcast that I should subscribe to?

I would love to hear your thoughts and ideas!