What else? You could always try educating people about the relevant facts and convincing them that your proposed solutions are the best way forward. This meme would work just as well if you changed the caption on the right to say ‘Climate activists blocking roads and getting into fights with paintings’.
Education has been tried for about 50 years and hasn’t worked. I would have preferred if it did.
Activism and civil disobedience has historically worked. Civil rights, suffragettes, Ghandi just as some examples. And it is working right now, even if it’s not obvious. For example https://ssir.org/articles/entry/protest_movements_could_be_more_effective_than_the_best_charities