Seasonal stabilization effects slowed the greening of the Northern Hemisphere over the last two decades
A reanalysis of Northern Hemisphere vegetation greening trends observed from long-term satellite data reveals that moisture and heat-related stress in the late growing season, along with other resource constraints, are increasingly offsetting positive growth effects from warmer temperatures in spring and rising atmosphere CO2 levels. Current state-of-the-art terrestrial biosphere models do not accurately represent these amplifying and stabilizing seasonal factors, which may impair model forecasts of future climate.