Amazonian Trees Grow Larger and More Resilient Amid Rising CO₂ Levels

Over three decades, Amazonian forests have experienced an increase in tree size and biomass, especially among large trees, likely driven by increased atmospheric CO2 levels, with no evidence of decline in large trees despite climate-related stresses. This suggests a strengthening of the forest carbon sink, with structural changes favoring larger trees, although declines in smaller stems may impact future resilience.