Assessment: There is high agreement between observations and projections of tree death in temperate and boreal forests, with current projections  indicating this trend will continue . Forest death is most widely recorded in central Europe and western North America . There is also very high agreement between observations and projections of woody encroachment in savannas, grasslands and tundra, with projections also indicating that this trend is likely to continue . Observations of desert-greening show good agreement with earlier projections. Patterns of desertification are also occurring, although the geographical match between projections and observations shows moderate agreement, likely due to the strong role of land use in this process. Projections of tropical forest expansion into mesic savannas and boreal forest expansion into tundra also show agreement with the observations.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report