This is a lot to think about, and also quite the trip back to science class lol.
For some reason, lately I have been thinking about this in the back of my min and wondered what was happening with it all. Then, I stumbled upon your post and, well, the explanation is all here. Funny how that works. But anyway, thank you for explaining all of this. I gained some good knowledge here!
Glad you learned something. So did I and even more from the comments. It is all quite confusing. I'm just worried when people say things like let's make a hydrogen-powered economy. Adding a little diversity is good, but it seems like there is a lot of politics and economics involved with the science.
The comments I'm saving for later when I have more time. When hitting politics, things can get technical, scary and confusing. There is so much involved, the best way to do it is the way that doesn't create such a chaotic result to this planet.