Brunei faces various methodological challenges in its methane mitigation approach, particularly regarding consistency and transparency of emissions estimation. In the energy sector, methane estimates rely heavily on Tier 1 methodologies that can benefit from enhanced accuracy and national specificity, while more advanced Tier 3 methods are only applied to certain sub-sectors. Meanwhile, the waste sector mostly depends on Tier 1 methodologies and displays notable data gaps, including incomplete coverage of waste categories and landfill sites (BTR1, p46-47). Overall, Brunei’s methane inventory requires more standardized estimation approaches and expanded data coverage for Tier progression.
AKCMM helps address these challenges by reframing its strategy in Brunei as part of a broader, integrated decarbonization framework that strengthens the technical capacity of overall GHG mitigation systems while emphasizing methane. This ensures strategic alignment with national priorities and existing institutional structures. The project involves a Methane Gap Analysis that identifies systemic data and institutional limitations and provides recommendations to improve Brunei’s MRV system. Furthermore, a policy-academia capacity building program enhances stakeholders’ technical understanding of GHG and methane MRV systems, improves coherence between different levels of MRV approaches, fosters practical capacity in relevant technologies, and strengthens institutional readiness for methane mitigation.
Ultimately, AKCMM strengthens the robustness and transparency of Brunei’s methane inventory in line with international standards such as the Paris Agreement’s Enhanced Transparency Framework (ETF) and supports broader capacity building for improved GHG mitigation measures. Through these efforts, the project contributes not only to methane reduction, but also to Brunei’s higher-level climate mitigation and sustainable development objectives.
