Chimuka et al. (2023): Quantifying land carbon cycle feedbacks under negative CO2 emissions

V. Rachel Chimuka, Claude-Michel Nzotungicimpaye, Kirsten Zickfeld IN: Biogeosciences, 20, 12, https://doi.org/10.5194/bg-20-2283-2023

This study investigates land carbon cycle feedbacks under positive and negative CO₂ emissions using an Earth system model of intermediate complexity (EMIC) driven with an idealized scenario of symmetric atmospheric CO₂ concentration increase (ramp-up) and decrease (ramp-down), run in three modes. The results show that the magnitudes of carbon cycle feedbacks are generally smaller in the atmospheric CO₂ ramp-down phase than in the ramp-up phase, except for the ocean climate–carbon feedback, which is larger in the ramp-down phase.

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