This week, world leaders are gathering in Busan, South Korea, to hammer out a global plastics treaty to try to curb pollution from one of the most dangerous materials on the planet. While such a high-level event might seem far removed from our everyday lives, it is the products we use every day that are at the heart of the negotiations. Some plastics are worse than others and have a unique impact in various parts of the world. Here, we look at five of the worst offenders.
