A part of the tiny home demo uses the septic tank effluent to produce biodiesel at the home-ranch-farm, this scales to cities. [This is tied to a previous proposal on biodiesel from sewage effluent]. What this means is that living in a home makes the biofuel for the car & home heating, for a dairy the barn washdown can fuel the entire operation, for a city it can make enough fuels for all transportation and much for space heating from the daily sewage. What should I enter for this part of the proposals for carbon reduction?