In the Kenyan capital of Nairobi, from November 13 to 19, 2023, the negotiations on the envisaged global plastics agreement will enter a new round. Under the umbrella of the United Nations, all relevant issues will be discussed and wrestled over. In this context, researchers at the Helmholtz-Zentrum Hereon, together with international partners, are providing supplementary scientific fact checks and background information – including a new quiz that takes a playful approach to the topic. The processed knowledge is bundled in Hereon’s online application Coastal Pollution Toolbox of the Hereon.