Reconciling global-model estimates and country reporting of anthropogenic forest CO2 sinks - Aix-Marseille Université
Article Dans Une Revue Nature Climate Change Année : 2018

Reconciling global-model estimates and country reporting of anthropogenic forest CO2 sinks

Richard A. Houghton
  • Fonction : Auteur
Glen P. Peters
Maria J. Sanz
  • Fonction : Auteur
Almut Arneth
Sandro Federici
  • Fonction : Auteur
Pierre Friedlingstein
Atul K. Jain
  • Fonction : Auteur
Etsushi Kato
Charles D. Koven
  • Fonction : Auteur
Donna Lee
  • Fonction : Auteur
Julia E. M. S. Nabel
  • Fonction : Auteur
Alexander A. Nassikas
  • Fonction : Auteur
Lucia Perugini
  • Fonction : Auteur
Stephen Sitch
Andy Wiltshire
Sönke Zaehle

Résumé

Achieving the long-term temperature goal of the Paris Agreement requires forest-based mitigation. Collective progress towards this goal will be assessed by the Paris Agreement’s Global stocktake. At present, there is a discrepancy of about 4 GtCO2 yr−1 in global anthropogenic net land-use emissions between global models (reflected in IPCC assessment reports) and aggregated national GHG inventories (under the UNFCCC). We show that a substantial part of this discrepancy (about 3.2 GtCO2 yr−1) can be explained by conceptual differences in anthropogenic forest sink estimation, related to the representation of environmental change impacts and the areas considered as managed. For a more credible tracking of collective progress under the Global stocktake, these conceptual differences between models and inventories need to be reconciled. We implement a new method of disaggregation of global land model results that allows greater comparability with GHG inventories. This provides a deeper understanding of model–inventory differences, allowing more transparent analysis of forest-based mitigation and facilitating a more accurate Global stocktake.
Fichier principal
Vignette du fichier
Grassi et al 2018 Nature Climate Change.pdf (745.59 Ko) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01889256 , version 1 (05-10-2018)

Identifiants

Citer

Giacomo Grassi, Jo House, Werner A. Kurz, Alessandro Cescatti, Richard A. Houghton, et al.. Reconciling global-model estimates and country reporting of anthropogenic forest CO2 sinks. Nature Climate Change, 2018, 8 (10), pp.914 - 920. ⟨10.1038/s41558-018-0283-x⟩. ⟨hal-01889256⟩
427 Consultations
631 Téléchargements

Altmetric

Partager

More