Honestly? It's from voracious reading over many years, and including both pop and more academic sources. Books almost always go deeper than what you'll find in

Honestly? It's from voracious reading over many years, and including both pop and more academic sources. Books almost always go deeper than what you'll find in video format. That said, if you try googling geo-engineering and climate change for a few minutes, you'll almost certainly find some of the techniques people have evaluated, their trade-offs and how the issue of moral hazard adds a cost to discussing them.