The smart folks at EAWAG Aquatic Research in Switzerland have developed a way to extract the phosphorus and nitrogen from urine to be used as fertilizer. Cultivating the nutrients leaves urine harmless to wildlife, otherwise untreated urine reaches the oceans, feeding algae causing algae blooms (also known as Red Tides) which soak up all the oxygen and suffocate fish.
Drinkpee by Tim Yu
Drinkpee by Tim Yu