Samantha Larson, reporting for National Geographic:
“Most conventional farms invest in synthetic fertilizer, which requires energy to produce and is associated with many environmental problems of its own. But by separating out human urine before it gets to the wastewater plant, Rich Earth cofounder Kim Nace says they can turn it into a robust fertilizer alternative: a “local, accessible, free, sanitary source of nitrogen and phosphorous.””
Closing the waste loop is good natural resource management.
