A circular food system can withstand crises like COVID-19 — and provide delicious meals
https://theconversation.com/a-circular-food-system-can-withstand-crises-like-covid-19-and-provide-delicious-meals-159101

Heh, it's pretty funny reading pop-sci nonsense like this.

The truth is that circular food systems like feeding pigs waste food, or using compost directly to grow food crops, are explicitly banned in many countries to _prevent_ pandemics. The problem is insufficient sterilization allows diseases to circulate from waste back to the plate. The scariest example being prions.