Building a green, healthy and resilient future with forests and trees requires strong knowledge to anticipate future changes and shocks, and their impacts on ecosystems, economies and livelihoods. Such knowledge also provides a basis for the development of strong, systemic, and better-coordinated policies to prepare for and address these changes. The purpose of this session is to discuss the role of forest and tree research for development in building a green, healthy, and resilient future. Forests and trees, like never before, are called on to play an important role in achieving many different objectives. The session will focus on key insights from a decade of research within the now-concluded CGIAR research program on Forests, Trees and Agroforestry (FTA) (2011-2021), as well as key insights by the International Union of Forest Research Organizations (IUFRO) on current major forest research frontiers.