I save you the whole quote but :
> Now, as an old man, I realize the only thing I can change is myself, and suddenly I realize that if long ago I had changed myself, I could have made an impact on my family. My family and I could have made an impact on our town. Their impact could have changed the nation and I could indeed have changed the world.
it's easier to have this kind of thing voted in a "climate-change-aware" nation, which is easier to have if all your local government are climate-change-ware, which is easier to have if all your neighborhood are climate-change-aware, which is easier if all the familly in it are climate-change-aware which is easier if you are climate change aware.
and once your country, regardless of how small it is, is climate change aware, it's easier to make bigger, more polluting country, to change, as they can't hide anymore behind a "your first"
but yes I agree with you that you can't stop at your individual level, but it has to start there