Efforts to recycle discarded plastic have not reduced piles of single-use products from landfills, and China will no longer import plastic waste for recycling. The United Nations says more than 8 million tons of plastic enters the ocean every year. Plastics are increasingly killing marine life and birds, threatening ecosystems and harming humans. Researchers are working to develop biodegradable materials to replace the durable plastic. VOA's Zlatica Hoke reports on one such project in Israel.