Plastic Sea The Plastic Problem Documentary Over eight million tonnes of plastic enters the ocean each year, killing sea life. Now new evidence says it's entering our food chain with unknown health effects. Special report: A Plastic Tide More than eight million tonnes of plastic is thrown away each year and washed out to sea. It takes centuries to break down. It's eaten by marine creatures. And it's in our food chain. Your seafood supper may have a synthetic garnish. Scientists just don't know what effects it has on our health. Print Email WhatsApp Facebook Twitter