My idea is basic and exists in some European countries, the only difference is the addition of a blockchain to pay for something that in many countries people already do just to keep their home/city clean. This is the most difficult part of the proposal.
Of course it is difficult. Imagine wanting to inform the government of your CO2 usage each time you needed a code to fill up at a gas station, or have six different home assistants you need to talk to in a certain order to get things done. No one wants useless bureaucracy.
What value is there in knowing that Bob picked up a piece of garbage on this date at this place? Is there a forensic need to identify a T4 (payment record) from a decade ago?
There is no value, so a blockchain is not needed. A simple database can do what you want, and they can be as distributed and as protected as you need. You don't need a blockchain or crypto to pay anybody.
Yes, that's why I said it already exists in some European countries, they already do it just to keep their city clean.
But even if data is captured and stored in a database, creating a graph and then there is a distribution of rewards for that, it will be an interesting type of project.
A clean and green world is a hotly debated topic these days.