Schiettecatte L. S. auteur aut IRD Tzamtzis I. auteur aut IRD Chotte Jean-Luc auteur aut IRD Crumpler K. auteur aut IRD Proenca C. auteur aut IRD Salvatore M. auteur aut IRD Sinitambirivoutin M. auteur aut IRD Wiese L. auteur aut IRD Bernoux Martial auteur aut IRD text journalArticle eng text/pdf reformatted digital access By 2025, Parties will have to submit to the United Nations Framework Convention on Climate Change (UNFCCC) a new or updated nationally determined contribution (NDC), with more ambitious climate commitments as compared to the previous one. It is thus expected that Parties will raise their ambition regarding their actions on GHG emissions reductions and carbon removals, which in the land sector focus on the living biomass, dead organic matter and soil organic matter pools. This study aimed at understanding how soils and their management practices are integrated into the current NDCs, and how this information might be used to quantify ex-ante climate change mitigation potential. This study found that while some actions provide sufficient level of information to quantify their climate change mitigation potential using the IPCC tier 1 methodologies, thus default carbon stocks values (biomass and soil), few Parties actually included this data in their NDCs. However, this study provided examples of such tier 1 quantification using the Nationally Determined Contribution Expert tool (NEXT) in ex-ante analyses. This type of ex-ante analyses is considered to be a starting point for discussions and collaboration between policy makers and technical experts involved in formulating NDCs and developing national greenhouse gas inventories. These analyses are also essential for improving data collection, increasing accuracy (thus decreasing uncertainties), strengthening credibility and feasibility, and paving the way for enhancing environmental ambitions and building countries' capacities. specialized Carbon stocks GHG emissions Soil Nationally determined contribution National greenhouse gas inventories 021 068 252 108805 [12 p.] 2025 0341-8162 https://www.documentation.ird.fr/hor/fdi:010092824 10.1016/j.catena.2025.108805 0341-8162 [F B010092824] https://www.documentation.ird.fr/hor/fdi:010092824 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/2025-04/010092824.pdf IRD - Base Horizon / Pleins textes 2025-04-02 2025-04-02 fdi:010092824 fre