How to influence the US election towards climate action
If you’re a US citizen, no matter where in the world, start by making sure you’re registered to vote. Many districts are gerrymandered, so you’ll want to register as the party that’s likely to win congressional and/or state legislative districts where you live, and vote in that party’s primary.
In addition to voting, you’ll want to influence politics beyond that. Your local races are a good place to start; cities and states control local land use and things like building codes.
As someone from outside the US, I just want to say: please do vote again for Joe Biden. He is without doubt the most pro-environment US President there has ever been.
I would add that I believe calling or mailing (like with paper) and even faxing your representatives is something that can make a difference. If you do it, tell your friends and maybe they will too!