I'm an adult considering a change of career. I have no relevant education or experience. I'm at least an hour away from anywhere that could be considered a major city and would not like to move. My only requirements are that I am actively helping our ecosystem thrive and I'm not dirt poor. What's a position I could reasonably obtain?
Wastewater? Maybe get a job at your local plant or office? They need all sorts of people: customer service, maintenance, engineers, automotive, chemists, IT, etc. The alternative is dumping raw sewage in water ways. They sometimes have apprenticeship programs.
ETA: Best job security in the world. People aren't going to stop shitting anytime soon. People don't want rivers of shit. So....
ETA2: I know you said you are coming in unskilled, but a lot of better places to work will pay for education if you wanted to go from say customer service to engineering or something.