The Sino-Norwegian project on methane from livestock production and waste management (ChiNorCH4) is one of the key initiatives under the bilateral cooperation framework between China and Norway in the fields of climate change and environment preservation. Launched in June 2024, the project is scheduled to run until December 2027. Its overarching objective is to enhance scientific understanding of methane emissions from livestock farming and manure management in northern China. By conducting localized emission factor measurements, cost-benefit analyses of mitigation technologies, and policy assessments, the project aims to provide scientific and technological support for the formulation of effective methane control strategies in China.

　　The ChiNorCH4 project is jointly led by the Chinese Research Academy of Environmental Sciences (CRAES) and the Norwegian Environment Agency (NEA). Chinese participating institutions also include the National Center for Climate Change Strategy and International Cooperation (NCSC). As the leading Chinese institution, CRAES is responsible for overall project coordination, internal management, and communication with the competent authorities of both countries. The Norwegian partner, NEA, contributes expertise in Norway’s advanced experiences, technologies, and policy tools for methane emissions control. The project forms a complete workflow centered around five key outcomes: inventory of current emissions, field measurement of key parameters, analysis of mitigation options, research on control policies, and dissemination of results. This integrated approach ensures that research findings directly support methane control practices in typical regions of northern China.

　　The ChiNorCH4 project exemplifies a model of bilateral cooperation, showcasing a full-chain collaborative framework that extends from national research institutions to local practical applications. Its expected outcomes include the development of a high-precision localized emission factor database, updated parameters for the GAINS-China model, a prioritized list of key mitigation technologies, and a multi-dimensional policy evaluation indicator system. These results will be disseminated through seminars, workshops, and policy recommendation reports, providing a solid scientific basis and practical experience for deepening Sino-Norwegian cooperation on climate and environment and advancing methane control actions in China.