ENVRI-Hub NEXT develops and implements the open access hub to the data and services provision framework of the Cluster of Environmental Research Infrastructures (ENVRI) and connects the environmental research community to the European Open Science Cloud. The overarching goal of ENVRI-Hub NEXT is to consolidate and advance the robust conceptual and technical structure established by the ENVRI-Hub to empower the ENVRI Science Cluster to provide interdisciplinary data-driven services. These services will support climate change research, including the development of mitigation and adaptation measures and strategies, and the assessment of the climate change risks. Through this platform, ENVRI-Hub NEXT will facilitate the integration of the environmental sciences community into EOSC, guided by the concept of Essential Climate Variables. In direct answer to the Call Topic, ENVRI-Hub NEXT expands the frontiers of multidisciplinary environmental sciences by fostering operational synergies between ENVRI RIs and developing and utilising complementarities in their data and services provision. The joint forces of ENVRI and e-infrastructures allow for the integration of cutting-edge information technology, alignment with the EOSC architecture, and efficient resource allocation for the advancement of a more integrated, productive, and globally competitive ENVRI Science Cluster. The ENVRI-Hub NEXT consortium brings together the key ESFRI Landmarks (ACTRIS, AnaEE ERIC, EPOS ERIC, EuroArgo ERIC, IAGOS AISBL, ICOS ERIC, LifeWatch ERIC) and ESFRI Projects (eLTER) participating in ENVRI-FAIR, the ENVRI information technology development and support providers from the University of Amsterdam, SeaDataNet as the key marine data infrastructure, FMI for the close relationship to EOSC Association and stakeholders, and the EGI Foundation and members of the EGI Federation to implement the operation of the services and the integration with EOSC Core.