Why is it so hard to recycle plastic? Every year, the world produces 400 million tonnes of plastic – and only a small proportion of this is recycled, and even this isn’t proper recycling but “downcycling”. This means the new plastic is of a lower quality, meaning almost all plastic eventually goes to waste. But could some hungry enzymes provide a solution? Find out on People Fixing The World: https://bbc.in/49TlxCJ | BBC World Service