There is nothing you can do as an individual, unfortunately. You can reduce your own impact, that’s something that personally makes me feel better and I would highly recommend (vegetarianism is the simplest way to do so). And if you’re motivated you can join advocacy or activist groups. But it’s a collective issue, individual have no actual power here. We need to act as a group to make meaningful changes.

Though, obviously do not vote for the pro fossil fuel parties (which is pretty much all right wing parties in the west)