[ivarv]

I don't know if we could get all the required nitrogen to sustain our current agricultural methods, but there are definitely people working towards normalizing the capture and reuse of the nutrients in urine. Our current practice of polluting waterways with our urine is a travesty though, and it behooves us to process our 'waste' in a more regenerative way.

See https://richearthinstitute.org for more.