Three quarters of the world live in autocracies, and another 19% outside liberal democracies.

That will require adapted tactics. I'm not very qualified to speak on how to convince people in leadership positions there. How do you convince Erdogan, Modi, Putin, Trump, Xi, the North Korean dynasty and others?

On the topic of climate change, off the top of my head, these countries don't have a per capita carbon footprint as large as the US, and the significant ones are I suppose India and China, and China seems open to dialogue on the topic, and is even leading in renewable energy.