All major European Union (EU) policies recognise the key role of wetlands to achieve the EU objectives regarding climate neutrality, biodiversity protection, zero-pollution, flood protection, and circular economy. Therefore, assessing the current extent and state of European wetlands, their current and potential greenhouse gases (GHG) profile and their medium to long-term mitigation capacity through restoration, or other measures, are key priorities of the European Union to tackle climate change. Led by the University of Aveiro, the Horizon project RESTORE4Cs (Modelling RESTORation of wEtlands for Carbon pathways, Climate Change mitigation and adaptation, ecosystem services, and biodiversity, Co-benefits) will assess the role of restoration action on wetlands capacity in terms of climate change mitigation and a wide range of ecosystem services using an integrative socio-ecological systems approach.