Saving the world sounds self-important and hubristic to my ears. Does the world really need saving? But trying to make the world a slightly better place on the margin is a worthy goal for any of us. My contributions are as follows:
Would you care to elaborate on this one?
Reducing the amount I recycle
Do you mean (1) "Being more efficient, so that less stuff needs recycling or discarding" or (2) "Putting stuff into landfill rather than recycling it"? To me, #1 seems like an obviously good thing but "Reducing the amount I recycle" seems like an odd way to describe it; #2 seems like the obvious reading of what you wrote but it's hard to see how it could be a very good thing (though it might be a way of Making a Statement, if you consider that effort spent recycling things rather than just chucking them out is wasted).
How are you saving the world? Please, let us know!
Whether it is solving the problem of death or teaching rationality, one of the correlated phenomena of being less wrong is making things better. Given the value many of us place on altruism, this extends beyond just ourselves and into that question of, “How can I make The Rest better?” The rest of my community. The rest of my country. The rest of my species. The rest of my world. To word it in a less other-optimizing way: How can I save the world?
So, tell us how you are saving the world. Not how you want to save the world. Not how you plan to. How you are, actively, saving the world. It doesn’t have to be “I invented a friendly AI,” or “I reformed a nation’s gender politics” or “I perfected a cryonics reviving process.” It can be a simple goal (“I taught a child how to recognize when they use ad hominen” or "I stopped using as much water to shower") or a simple action as part of a larger plan (such as “I helped with a breakthrough on reducing gas emissions in cars by five percent”).
If we accept this challenge of saving the world, then let us be open and honest with our progress. Let us put our successes on display and our shortcomings as well, so that both can be recognized, recommended, and, if need be, repaired.
If you are not doing anything to save the world, even something as simple as “learning about global risks” or “encouraging others to research a topic before deciding on it”? Then find something. Find a goal and work for it. Find an act that needs doing and do it.
Then tell us about it.