The Wadden Sea was recognised with a dedicated session during the conference ECSA 58 - EMECS 13: Estuaries and coastal seas in the Anthropocene – Structure, functions, services and management which took place as an online event from September 6 to 9, 2021.

More than 100 dead harbour porpoises have washed up on the beaches of the Dutch Wadden Sea islands of Vlieland, Terschelling, Ameland and Schiermonnikoog in the last week, as reported by the University of Utrecht.

The third webinar working towards a trilateral Community of Understanding for sediment solutions was held in June.

WG-Swimway and invited guests drafted a policy statement based on existing guidelines and regulations with a direct link to the Trilateral Fish Targets at European level and how these have been implemented per country and trying to analyse their contribution to the realization of these targets.

Report on the first silt balance assessment for the trilateral Wadden Sea published.

In January 2020 the third Total Count of the East Atlantic Flyway was organized. The now published compilation of national reports gives a first overview of the bird numbers counted in 32 countries along the Flyway.

On 27 November, the trilateral webinar Sediment Solutions was held.

Extreme heat events, temperature increase and sea level rise could be the key stressors of climate change, which will affect the Wadden Sea World Heritage site.