Through in-person, online, and livestreamed sessions held in Oujda, Morocco; Tirana, Albania; online during EU Green Week 2024; Ljubljana, Slovenia; Porquerolles Island, France; Oristano, Sardinia, Italy; Izola, Slovenia; and Athens, Greece, the meetings bring together EU Mission projects, researchers, technology providers, public authorities, civil society organisations, environmental practitioners, and local communities to exchange solutions for preventing, monitoring, collecting, valorising, and reducing plastic and microplastic pollution.