The SUMES project (September 2020-August 2023) aims to develop a model to assess the impact of man-induced changes on the ecosystem, its structure (e.g. biodiversity) and function (e.g. food chains, biogeochemistry), its capacity to deliver goods and services to marine ecosystems (e.g. carbon sequestration) and the resulting impacts. The aim is to use this insight to explore how economic activities at sea can be made more sustainable, also a framework will be developed to support the decision-making process.