OYSTER WORLD | VIDEO | 664237

Japan turned millions of giant oysters into living water treatment plants. Japan's Hiroshima Prefecture operates over 18,000 oyster farming platforms across the Seto Inland Sea, producing 20,000 tonnes of oysters every year, but these farms aren't just about food. Each oyster filters up to 50 gallons of water per day, removing nitrogen, phosphorus, and toxic pollutants from some of the most contaminated bays on Earth. In this video, we explore how Japan transformed centuries-old oyster farming traditions into the most powerful environmental cleanup system.