There is a new method to create waste backed crypto with anaerobic digestion. This is an unlimited resource. You can convert waste and sewage to electricity in these new plants and then sell the electricity with Energy Web Token (EWT). Send a private message for more details if you are interested.
It sounds like a pretty unique idea, but I'm puzzled as to why you're not disclosing information about this project here? You don't want many people to know about this project?