The goal of the SoGreen project is to enhance the capacities of the four leading social science infrastructures in Europe ESS ERIC, SHARE ERIC, GGP and GUIDE, and generate valuable insights aimed at facilitating the study and evaluation of the social aspects of the green transition for different generations and socioeconomic groups across Europe, using a life course perspective. SoGreen will contribute to the work programme topic “Next generation of scientific instrumentation, tools and methods and advanced digital solutions” by developing new services, comprising innovative tools, solutions, and questionnaire modules related to the social aspects of the green transition. The unique longitudinal and multi-generational perspective of the infrastructures involved goes beyond the state of the art by integrating new data and novel analytical frameworks to foster interdisciplinary insights on the green transition at national and regional levels, including new services, including geospatial data linkable with survey datasets and new visualisation tools. Central to our approach is the collaborative development of a new tool, the Green Transition Questionnaire Module, to ensure coherence in addressing environmental themes which will then be fielded within the different surveys. Moreover, we will also prepare harmonized aggregates of collected data and their visualization through a joint dissemination platform, enhancing accessibility and promoting consistency in data interpretation across various studies. The Knowledge Mobilisation Lab will be another new and innovative tool to identify, build, and engage a multifaceted network of different audiences and stakeholders. This includes professionals from policy, research, non-profit, and private sectors, thus actively shaping the discourse and informing developments related to the green transition.