Land remains a blind spot in tracking progress under the Paris Agreement due to lack of data comparability

Land carbon fluxes are key to the Paris Agreement. However, data comparability issues persist between countries’ land greenhouse gas inventories and mitigation targets, and what land models (bookkeeping and integrated assessments) provide as Paris-aligned benchmarks for land. As a result, the Global Stocktake, aiming to track collective mitigation progress, did not explicitly consider country targets for land. This blind spot leaves countries uninformed of the 2030 gap between their ambitions for mitigation on land and models’ benchmarks. 

Here we track the contribution and evolution of land-related targets under countries’ 2020 Nationally Determined Contributions, splitting land pledges between reduced emissions and additional sinks. Land retains a quarter of the global mitigation pledges in 2030, mostly relying on external support (−1.5ǂ1.1 GtCO2e/yr), of which −0.55 GtCO2e/yr are additional sinks. It is crucial that future Global Stocktakes include appropriate comparisons between modelled and country-provided land use net emissions. We here offer some concrete suggestions.

Authors

PBL Authors
Michel den Elzen
Other authors
Rosa Maria Roman-Cuesta
Zuelclady Araujo-Gutierrez
Nicklas Forsell
William F. Lamb
Emily McGlynn
Joana Melo
Simone Rossi
Malte Meinshausen
Sandro Federici
Matthew Gidden
Kimon Keramidas
Anu Korosuo
Giacomo Grassi

Specifications

Publication title
Land remains a blind spot in tracking progress under the Paris Agreement due to lack of data comparability
Publication date
28 July 2025
Publication type
Article
Publication language
English
Magazine
Communications Earth & Environment
Issue
volume 6, Article number: 598 (2025)
Product number
5574