Ask HN: What can we do about climate change?

After reading up on the current state of climate change and what we are doing to mitigate or reverse the effects, it felt like there is a sense of lost hope for the world coming back from this. Beyond sitting back and letting the events unfold, does anyone think there's something that the people of HN can do with our varied skill sets? This may sound naive but I do wonder if there's more we could be doing that could have a multiplier effect on the effort to mitigate the factors that are causing climate change.