Not an expert in any way, research what you can do to offset your own carbon footprint. Go carbon neutral / negative for yourself and your whole family. There are projects like effective altruism where you can donate your money efficiently. Maybe switch to a bank that invests mostly in carbon neutral energies / Research (don’t know if there is something like this in the US).

Try to convince other people in your peer group to do the same.

But I assume the best thing one can do, get involved and spend time. Whether in local politics, companies trying to move things forward, NGOs, I don’t know.