Mitigation options to reduce methane emissions in paddy rice

The Paddy Rice Component of the Climate and Clean Air Coalition's (CCAC) Agriculture Initiative aims to implement the alternate wetting and drying (AWD) technology, on large scale, in Vietnam, Bangladesh, and Colombia to significantly reduce methane emissions from rice fields. With support from CCAFS, IRRI coordinates the activities of this component in Vietnam and Bangladesh, while CIAT covers the work in Colombia.

The program will address major constraints to mitigation in paddy rice by identifying (1) best management practices that achieve both mitigation and food security and (2) incentives, technical support mechanisms, and enabling conditions to overcome the barriers that men and women farmers face in using new practices. Based on these assessments, the Paddy Rice Component will produce technical and policy guidance for national governments to implement greenhouse gas (GHG) mitigation options at large scales.

Phase 1 of the component will produce:

  1. Improved information for decision-making. A central kiosk will be established that comprises high-quality information and consistent metrics on rice management practices, their GHG mitigation and food security impacts, and opportunities and barriers to implementation.
  2. Suitability maps for AWD. GIS maps will be constructed in each country to show suitability of paddy rice locations for AWD in order to target and prioritize most suitable areas.
  3. National networks and capacity. Multi-stakeholder working groups in each country will be established to identify barriers to adopting AWD and approaches on how to overcome them. National policy networks will be created to raise awareness of paddy rice mitigation options. IRRI and CIAT work with policy makers to build needed capacity.

Theory of change

Project activities will work with countries to improve and implement AWD+ at large scales. Activities will fill key gaps in knowledge and practice related to:

  1. emissions reductions for diverse settings,
  2. best practices and policy priorities,
  3. incentives for farmers, and
  4. enabling conditions for farmer innovation

By sharing knowledge and testing practices with agricultural development stakeholders in these four areas, this research will catalyze investments and actions at the country and multi-lateral levels.

News blogs

Climate project partners map inroad to adoption of water-saving technology

Bangladesh plans for 'alternate wetting and drying' outscaling

New CCAC agriculture effort tackles climate change, supports rice production

The Climate and Clean Air Coalition: Investing towards productive and greener rice in Colombia

SPREADING THE WORD: Looking for options to reduce methane emissions from paddy rice systems in Colombia

Coalición Clima y Aire limpio: reduciendo las emisiones de metano en cultivos de arroz

New Climate and Clean Air Coalition Agriculture Effort Tackles Climate Change, Supports Rice Production

Poster and brochure

AWD infographic

Large scale implementation of alternate wetting and drying: Targeting priority areas for mitigation in rice production (poster)

CCAC brochure

Project Reports

Report from the AWD workshop Sharing experiment on applying and scaling up AWD technology applied for paddy rice in Mekong River Delta

Report on National Planning Workshop for Phase I of the CCAC – Paddy Rice Component in Vietnam

Report on the National Planning workshop for Phase I of the Climate and Clean Air Coalition’s Paddy Rice Component in Bangladesh

Report on the National Planning workshop for Phase I of the Climate and Clean Air Coalition’s Paddy Rice Component in Colombia

Technical Guidelines

Quantifying greenhouse gas emissions from managed and natural soils

Greenhouse gas measurement from smallholder production systems: guidelines for static chamber method

Common practices for manual greenhouse gas sampling in rice production; a literature study on sampling modalities of the closed chamber method

MIRSA guidelines

Media Articles (Vietnamese)

Việt Nam phấn đấu giảm 20% phát thải khí nhà kính từ trồng trọt

Giảm phát thải khí nhà kính trong nông nghiệp bằng tưới khô ẩm xen kẽ

Tưới khô ẩm xen kẽ, giải pháp giảm phát thải khí nhà kính


The CCAC Paddy Rice Component is jointly undertaken by IRRI and CIAT and works very closely with national stakeholders in target countries. These include policy makers, farmer associations, irrigation infrastructure managers, and farm input providers among others. Our contact institutions for in-country activities are the Institute for Agricultural Environment (IAE) in Vietnam, Bangladesh Agricultural University (BAU) in Bangladesh and the national federation of rice farmers (Fedearroz) in Colombia. The low emissions agriculture flagship of CCAFS supports the component financially and provides assistance.