Revisiting the Common but Differentiated Responsibility Principle in the Prevention and Control of Marine Plastic Pollution

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Abstract The ongoing plastic treaty negotiation hosted by the United Nations Environment Programme (UNEP) marks an ambitious international effort to address plastic pollution, particularly in the marine environment. The application of the principle of common but differentiated responsibility (CBDR) is one of the most controversial issues raised during negotiations. This article examines the origin, development, and basic components of the CBDR principle. Then current debates are illustrated by presenting statements from delegates and the negotiating materials. The emphasis on historical responsibility is used to justify the application of the principle as a mechanism for equity and fairness in international law. In conclusion, this article offers some reflections concerning the incorporation of the CBDR principle into the future plastic treaty.