We are a very high-maintenance society. About 70% of the fresh water used worldwide is destined to agriculture, largely for animal feed production; simultaneously, near to 75% of the global fish stocks are overfished.
Aquaponics is a technique that combines farming of aquatic species (aquaculture) with soilless plant production (hydroponics). It tackles both wastewater treatment and nutrient recovery by reusing the fish waste for plant growth in a single water cycle.
Developing aquaponics to a commercial scale can thus help reducing our water demand and impact on biodiversity.