Poop is Human Manure
Web have an astonishingly large mountain of renewable and sustainable manure. Just imagine what 7 billion people produce per day and multiply that by 365 days a year. We just have to overcome our deep-rooted aversion.

When there was no toilet and sewerage, people did their need on a bucket or pot. This was picked up and emptied once a week by the shitton creator who then threw the droppings on his shit-cart and took it out of town. . In poorer areas, the turd is left in a latrine or under a tree. Regardless of country or culture, we usually keep our waste as far away as possible. Our aversion to it is universal. They are excrement, and they are by definition dirty, an insult to the eye and the olfactory organ.
In the Middle Ages, people's faeces often ended up in the water or in the streets, which often caused the city to stink. This was, of course, bad for the health of the people and, in order to solve this, the city authorities banned from discharging waste and excrement into the canals. The alternative was the cesspool (bear = poep). This was a pit where the droppings were thrown into. . Often landlords were obliged to make a cesspool in the cellars or gardens. In the poorer neighborhoods, fewer cesspools were made and people had to share one.
In the Middle Ages, it is generally thought that it was mainly a dirty gang at the time. They used to poop on the street all the time? Were they pooping and tipping all their dirt out the window.?
RenΓ© de Kam is a historian and curator at the Centraal Museum Utrecht and sought it out. Based on his conclusions, he put together the exhibition The Healthy City, over a thousand years of health in Utrecht.
Such a cesspool is called the HUDO when scouting, or Keep Your Guts Open. Not to harden odeur often.
No matter how bad, with manure there is possibly an almost inexhaustible source of energy.
https://yoo.rs/gratis-meststof-1526502004.html?Ysid=59367
Gratis meststof !