Nature – Park & Kug (2022): A decline in atmospheric CO2 levels under negative emissions may enhance carbon retention in the terrestrial biosphere

Park, SW., Kug, JS. IN: Commun Earth Environ 3, 289.

The authors find a strong lag in the response of the terrestrial carbon cycle to CO2 forcing. The terrestrial biosphere retains more carbon after CO2 removal starts, even at equivalent CO2 levels. This lagged response is greatest at high latitudes due to long carbon residence time and enhanced vegetation productivity.