PONTOS aims to enhance transboundary cooperation for large-scale, harmonized environmental monitoring across the countries of the Black Sea region and beyond. The vehicle towards this objective is the exploitation of numerous freely available and incrementally credible Copernicus data and services (e.g. Copernicus Land and Marine Environment Monitoring Services). Intelligent fusion of data and information shall lead to novel services and products for actors operating along the coastal zone. Latter shall become, through PONTOS operational platform and mounted online services, freely available to and accessible by  a multitude of local, national and regional stakeholders. Transboundary spaceborne derived primary (e.g. images) and secondary (e.g. maps) products will be coupled with existing data and knowledge of in situ conditions. Tailored to the regional challenges, solutions will be generated by utilizing this information thesaurus and retrieving methods and results (e.g. online modules and models) from EU and national past and ongoing research and development projects. Citizens’ current and future well-being will be the focus. As such, marine and lake coastal and inland human activities will be mapped targeting industry, recreation, agriculture, aquaculture, and commerce in Armenia, Georgia, Ukraine, and pilot-wise in Greece. Their effluents towards the Black Sea or the lakes around it will be calculated, while at the same time spaceborne and in situ data will monitor fluctuations in marine features’ values, such as surface water temperature, salinity, nutrients, potentially toxic elements, and algae presence. The impact will be assessed in relation with set benchmark conditions. Local stakeholders and actors will be informed and equipped with the adequate interface to access the information and its regular updates. Co-development and co-creation actions will respect national and local needs, constraints and vision. Together with capacity building activities PONTOS aims to offer the means to exploit in tandem existing local monitoring networks and Copernicus products and services, to align its online services with a compatible manner to existing hard- and software infrastructures, and to leverage cooperation and exchange of ideas and best practices across the region.