According to a report from the International Rice Research Institute (IRRI), the Philippines, Thailand, and Vietnam have established technical solutions for methane mitigation in rice production.

These solutions include techniques such as alternate wetting and drying (AWD), mid-season drainage, direct-seeding of rice, improved straw management, and site-specific nutrient management.

Challenges in Measurement, Reporting, and Verification (MRV)

Despite advancements, the report outlines that progress is hindered by the lack of credible and scalable MRV systems.

“The main bottleneck is not only in the technical measurement of greenhouse gases but in the entire MRV chain. Countries must consistently monitor activity data, report it in standardized formats, validate it across various agencies, and verify outcomes through trusted systems,” the report states.

Effective MRV is vital not just for achieving national climate commitments but also for accessing climate finance.

Uneven and Fragmented Approach

Although MRV integration into national climate governance has advanced, rice-sector systems in these countries remain uneven. Specifically, emissions vary due to factors like season, irrigation practices, crop establishment methods, and local weather patterns.

This variability makes accurate emissions estimation challenging, thus undermining the credibility of emissions data.

“Improving MRV for rice necessitates both enhanced emissions estimation and robust tracking of farmers’ actual practices,” the report emphasizes.

Cost Barriers in MRV Implementation

The report acknowledges that MRV costs are a significant obstacle, particularly for smallholders, making it challenging to scale programs and attracting investors.

Establishing baselines and monitoring infrastructure requires substantial upfront investments, while ongoing data collection and reporting costs can remain high.

These issues are complicated by a lack of accredited verification bodies with agricultural expertise and the fragmented nature of smallholder rice production.

Innovative Solutions: Digital Tools

Digital tools present an opportunity to lower costs and enhance transparency if integrated into coherent governance frameworks.

Technologies such as remote sensing, digital logbooks, artificial intelligence, and IoT-enabled irrigation can help reduce transaction costs but still require harmonized data standards and independent verification.

Financial limitations also pose challenges, with climate financing for rice methane mitigation falling short of requirements due to perceptions that these projects are costly and difficult to verify.

Strategic Financing and Farmer Incentives

The report advocates for blended financing models that merge concessional public funding for MRV with market-based incentives and domestic policy alignment.

It emphasizes that carbon credits alone will not sufficiently shift farmer behavior, noting that participation will depend on a broader range of incentives, including access to machinery, premium markets for low-emission rice, and payments for verified practice changes.

Finally, the report argues that MRV systems must be closely linked not just to carbon markets but also to the entire rice value chain, stressing the need for clear rules surrounding carbon rights and benefit sharing.

The conclusion drawn is that countries should transition from fragmented pilot projects to comprehensive, investment-ready national rice MRV strategies, viewing this as a governance, finance, and implementation agenda.

Current GHG data collection systems and integrating MRV systems in climate finance in the Philippines, Thailand, and Vietnam
Tobiah Rey Gonzalez, Katherine Nelson, Vorayuth Pakachaipong, Carlito Balingbing, Bjoern Ole Sander, Alisher Mirzabaev
International Rice Research Institute (IRRI), Los Baños, Philippines
Read the full report here.