As the Green ERA-Hub project comes to a close after four years, this report reflects on the evolution of European research and innovation and captures valuable knowledge for the future. It combines a strategic assessment of key research areas developed through the Green ERA-Hub networks with practical lessons learned from years of European joint programming.

By highlighting remaining research gaps, sharing best practices, and presenting recommendations from project partners and researchers, the report aims to support the design of future European research and innovation initiatives and ensure that valuable expertise is not lost.