Forests that are resilient to the climates of the future and capable of improving the performance of their ecosystem services are key to developing and strengthening a powerful forest bioeconomy in Europe. The OptFORESTS project aims to work towards the future adaptation of forests by harnessing Forest Genetic Resources (FGR), and supporting their conservation and sustainable use through the following main lines of work and objectives: – Conducting research on the selection of diverse forest reproductive material (FRM), including mixtures, adapted to future climates – Fostering sustainable use and resilience of natural forests – Helping expand and diversify nursery production – Developing nature-based solutions (NBS), tools (e.g, expanded Information Systems) and cultural trajectories to promote forest biodiversity and ecosystem services – Demonstrating biodiversity solutions.