Projections point to potentially large changes of canopy structure and composition within and across the terrestrial biomes in response to climate change and changes in atmospheric CO2. These changes will contribute to altered ecosystem carbon uptake and losses, biophysical climate feedbacks  and multiple other ecosystem services  as well impacts on biodiversity . Until now, most studies project changes over next decades until the end of this century.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report