Plastic has long been one of the planet’s biggest challenges—but that might be about to change. Japanese scientists have developed a groundbreaking biodegradable plastic that dissolves completely in seawater within just an hour, leaving behind no harmful microplastics. Instead, it breaks down into nutrients like nitrogen and phosphorus, feeding marine life instead of threatening it. On land, the same material disappears within eight to ten days, enriching the soil and supporting new growth. Unli