Methane Abatement in Sustainable Taxonomies

This executive summary outlines evidence-based criteria and best-practice measures to help policymakers and taxonomy developers integrate methane reduction into sustainable finance frameworks. It identifies four key sectors for mitigation—energy, agriculture, solid waste, and wastewater—and provides specific technical benchmarks, such as lifecycle GHG emission thresholds for bioenergy and leak detection and repair (LDAR) requirements. The goal is to increase the flow of capital toward cost-effective methane abatement, which currently falls short of the estimated USD 48 billion annual requirement through 2030.

• Investment in methane abatement is significantly lower than required, with annual investment dropping from less than USD 14 billion in 2021/22 to approximately USD 6 billion in 2023, compared to an estimated annual need of USD 48 billion through 2030.
• Sustainable finance taxonomies can catalyze methane mitigation by accelerating funds for mature applications, prioritizing harder-to-finance solutions in diffuse sectors, and reducing perceived risks and funding costs through consistent signals.
• For the energy sector, best practices for bioenergy include the use of lifecycle GHG emission thresholds and specific monitoring tools such as BIOGRACE II, RSB GHG Calculator, and GREET to ensure compliance.
• In the agriculture sector, best practices for livestock include dietary manipulation to mitigate enteric fermentation, selective breeding, and manure management strategies such as slurry acidification and anaerobic digestion.
• Methane abatement in rice production focuses on water and irrigation management, specifically implementing practices that reduce flooding days by at least 10% or achieving a measurable GHG emission reduction of at least 1.5% per year.
• For solid waste and wastewater, best practices emphasize the transition from flaring-only systems to value-added biogas use within 3 years and the implementation of airtight digestate storage for at least 50 + x days.
• Minimum requirements for Leakage Detection and Repair (LDAR) systems include mandatory third-party revision for credibility, at least one monthly visual inspection of high-risk components, and annual professional leak quantification.

APA

Wetmańska, Z., Fernandes, P. D. A., Miao, G., Shankar, V., & Alanah, I. (2025). Methane Abatement in Sustainable Taxonomies. Climate Bonds Initiative. https://www.climatebonds.net/files/documents/publications/Methane_Abatement_in_Sustainable_Taxonomies_Summary.pdf

Chicago

Wetmańska, Zofia, Pedro de Aragão Fernandes, Gaoyi Miao, Varun Shankar, and Ines Alanah. Methane Abatement in Sustainable Taxonomies. Climate Bonds Initiative, 2025. https://www.climatebonds.net/files/documents/publications/Methane_Abatement_in_Sustainable_Taxonomies_Summary.pdf.

Wikipedia

{{cite report |last1=Wetmańska |first1=Zofia |last2=Fernandes |first2=Pedro de Aragão |last3=Miao |first3=Gaoyi |last4=Shankar |first4=Varun |last5=Alanah |first5=Ines |title=Methane Abatement in Sustainable Taxonomies |publisher=Climate Bonds Initiative |date=December 2025 |url=https://www.climatebonds.net/files/documents/publications/Methane_Abatement_in_Sustainable_Taxonomies_Summary.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{wetmaska2025methane, author = {Wetmańska, Zofia and Fernandes, Pedro de Aragão and Miao, Gaoyi and Shankar, Varun and Alanah, Ines}, title = {{Methane Abatement in Sustainable Taxonomies}}, institution = {Climate Bonds Initiative}, year = {2025}, month = dec, url = {https://www.climatebonds.net/files/documents/publications/Methane_Abatement_in_Sustainable_Taxonomies_Summary.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }