Restoring forests is key to addressing the climate and biodiversity crises and can benefit forest-dependent
communities. However, frequent social and ecological trade-offs between these goals pose significant chal-
lenges for forest restoration efforts. Our understanding of how to maximize positive social and ecological
restoration outcomes is hindered by the absence of a social-ecological theory of forest restoration. We
present a new analytical ‘‘sustainable forest transitions’’ framework to study the joint social and ecological
outcomes of reforestation drivers. Our framework advances forest transition theory, the main existing frame-
work for understanding reforestation drivers, by incorporating social outcomes and a wider set of ecological
outcomes, paying particular attention to interactions between drivers and the sociopolitical contexts in which
they operate. Advances in data availability, computing power, and causal inference methods allow our frame-
work to be operationalized. Doing so could inform forest restoration actions that maximize benefits for
climate, biodiversity, and forest-dependent communities.