We invited participants to an inspiring introduction to the OneAquaHealth project. The session explored how the project uses AI‑assisted environmental monitoring, early‑warning indicators, and citizen‑science engagement to better understand the link between ecosystem dynamics and public health, supporting smarter and more resilient urban environments.

In the second part of the webinar, the consortium presented the IEEE OneAquaHealth Global Hackathon 2026 – an open call for innovators, students, and citizen scientists to co‑create digital solutions that strengthen the sustainability of urban aquatic ecosystems. Participants learned how the hackathon will transform environmental and citizen‑generated data into actionable insights through AI, data platforms, and human‑centred design, advancing the mission of connecting ecosystem health, biodiversity, and human wellbeing.

The webinar laid the foundation for both the scientific vision of OneAquaHealth and the creative, community‑driven innovation the hackathon aimed to inspire.