Pugh et al., 2019utilized a new global database of forest age to inform a vegetation model.
Regrowth forests constitute a carbon sink that is even greater than that of old-growth forests.
This study underscored the importance of forest age data and demographic processes in terrestrial biosphere modeling.
They challenged the traditional equilibrium view and revealed that much of the current global forest carbon sink is transient.
In light of their estimate of a smaller carbon sink than previously anticipated, even more immediate action on CO2 emission reduction may be justified.