Diplomats are gathering in Ottawa this week for the latest round of negotiations on a treaty to end plastic pollution.

Back in 2022, 175 countries agreed to develop a legally binding agreement on plastic pollution by 2024. This meeting in Ottawa is the penultimate round of negotiations and a critical moment in the long effort to curb the environmental damage caused by the rampant production and use of plastic today.

On the line with me to discuss what these negotiators hope to achieve and some of the key obstacles in the way of a robust treaty on plastic pollution is Erin Simon, Vice President and Head of Plastic Waste and Business at the World Wildlife Fund. We kick off discussing the problem of plastic pollution before having a broader conversation about these treaty negotiations. This includes a conversation about some key diplomatic stumbling blocks preventing the adoption of a treaty on plastic pollution.