Greenhouse gas mitigation on croplands: clarifying the debate on knowns, unknowns and risks to move forward with effective management interventions

Autor: Emily E. Oldfield, Jocelyn M. Lavallee, Jennifer Blesh, Mark A. Bradford, Micah Cameron-Harp, M. Francesca Cotrufo, Alison J. Eagle, Lisa Eash, Rebecca J. Even, Sara E. Kuebbing, Eric A. Kort, Tyler J. Lark, Catharina Latka, Yang Lin, Megan B. Machmuller, Brendan O’Neill, Anna M. Raffeld, Taniya RoyChowdhury, Joseph Rudek, Jonathan Sanderman, Christine D. Sprunger, Theodore P. Toombs, Nazli Uludere Aragon, Marti Vidal, Dominic Woolf, Tamara J. Zelikova, Doria R. Gordon
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Carbon Management, Vol 15, Iss 1 (2024)
Druh dokumentu: article
ISSN: 17583004
1758-3012
1758-3004
DOI: 10.1080/17583004.2024.2365896
Popis: The opportunity of agricultural management practices to sequester soil organic carbon (SOC) is recognized as an important strategy for mitigating climate change. However, there is low confidence when it comes to understanding the magnitude of the climate benefit we can expect from SOC sequestration or how best to achieve it. Several issues are often confounded when it comes to the mitigation potential of SOC sequestration and greenhouse gas (GHG) reductions from agriculture, creating confusion and making it difficult to clearly identify the knowns, unknowns and risks to implementing policy and practice recommendations. Here, we identify and explain four major areas of uncertainty: (1) the expected changes in soil carbon or GHG emissions resulting from agricultural management practice changes; (2) the extent to which social, environmental and economic factors constrain mitigation potential; (3) the ability to execute reliable measurement, monitoring, reporting and verification (MMRV) frameworks; and (4) the perception of risk associated with different ways of promoting practice adoption (e.g., voluntary carbon markets fueled by the private sector, pay-for-practice programs funded by public investment). We aim to pinpoint knowledge gaps and areas of disagreement to help right-size expectations and guide effective investment in GHG removals and reductions from agriculture.
Databáze: Directory of Open Access Journals
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