Does the average human produce enough faecal waste to fertilise the land necessary to feed that human?
I rather assume not as it would likely violate the conservation of something or other.
But does anyone actually know?
The reason I ask: if yes then an entirely vegetarian and organic agriculture is possible. We need no new abstraction of fertiliser from the environment nor do we need animal wastes.
However, if not, then we need either animal waste or we need \”artificial\” fertilisers. Which means dumping either the vegetarian option or the organic.
So it would be interesting to know: can humans shit enough to fertilise the crops that feed humans?