A consistent budgeting of terrestrial carbon fluxes.

ABSTRACT: Accurate estimates of CO₂ emissions from anthropogenic land-use change (E_LUC) and of the natural terrestrial CO₂ sink (S_LAND) are crucial to precisely know how much CO₂ can still be emitted to meet the goals of the Paris Agreement. In current carbon budgets, E_LUC and S_LAND stem from two model families that differ in how CO₂ fluxes are attributed to environmental and land-use changes, making their estimates conceptually inconsistent. Here we provide consistent estimates of E_LUC and S_LAND by integrating environmental effects on land carbon into a spatially explicit bookkeeping model. We find that state-of-the-art process-based models overestimate S_LAND by 23% (min: 8%, max

SUBMITTER: Dorgeist L 

PROVIDER: S-EPMC11358497 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature