An assessment of China’s methane mitigation potential and costs and uncertainties through 2060
Abstract China, the world’s largest methane emitter, is increasingly focused on methane mitigation in support of its climate goals, but gaps exist in the understanding of key methane sources, as well as mitigation opportunities and their associated uncertainties. We use a bottom-up modeling approach...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-11-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-54038-y |
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| _version_ | 1850196091682684928 |
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| author | Nina Khanna Jiang Lin Xu Liu Wenjun Wang |
| author_facet | Nina Khanna Jiang Lin Xu Liu Wenjun Wang |
| author_sort | Nina Khanna |
| collection | DOAJ |
| description | Abstract China, the world’s largest methane emitter, is increasingly focused on methane mitigation in support of its climate goals, but gaps exist in the understanding of key methane sources, as well as mitigation opportunities and their associated uncertainties. We use a bottom-up modeling approach with updated methane emission projections and abatement cost analysis to account for additional sources, uncertainties, and mitigation measures in China’s energy and agricultural sectors. Here we show the significant cost-effective potential for reducing methane emissions in China by 2030, with 660 million tonnes of carbon dioxide equivalent possible with average negative abatement costs of US$6.40 per tonne CO2e. Most of this potential exists in the energy sector, particularly coal mining, but the greater potential will shift towards agriculture by 2060. Aquaculture and biochar applications in rice cultivation have net economic benefits but need greater support for deployment, while new mitigation measures will be needed for remaining emissions from enteric fermentation, rice cultivation, and wastewater. |
| format | Article |
| id | doaj-art-3f955fdfb98a49619fd7aec46b2b6ef3 |
| institution | OA Journals |
| issn | 2041-1723 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-3f955fdfb98a49619fd7aec46b2b6ef32025-08-20T02:13:32ZengNature PortfolioNature Communications2041-17232024-11-0115111310.1038/s41467-024-54038-yAn assessment of China’s methane mitigation potential and costs and uncertainties through 2060Nina Khanna0Jiang Lin1Xu Liu2Wenjun Wang3Energy Technologies Area, Lawrence Berkeley National LaboratoryEnergy Technologies Area, Lawrence Berkeley National LaboratoryPeking UniversityUniversity of California at BerkeleyAbstract China, the world’s largest methane emitter, is increasingly focused on methane mitigation in support of its climate goals, but gaps exist in the understanding of key methane sources, as well as mitigation opportunities and their associated uncertainties. We use a bottom-up modeling approach with updated methane emission projections and abatement cost analysis to account for additional sources, uncertainties, and mitigation measures in China’s energy and agricultural sectors. Here we show the significant cost-effective potential for reducing methane emissions in China by 2030, with 660 million tonnes of carbon dioxide equivalent possible with average negative abatement costs of US$6.40 per tonne CO2e. Most of this potential exists in the energy sector, particularly coal mining, but the greater potential will shift towards agriculture by 2060. Aquaculture and biochar applications in rice cultivation have net economic benefits but need greater support for deployment, while new mitigation measures will be needed for remaining emissions from enteric fermentation, rice cultivation, and wastewater.https://doi.org/10.1038/s41467-024-54038-y |
| spellingShingle | Nina Khanna Jiang Lin Xu Liu Wenjun Wang An assessment of China’s methane mitigation potential and costs and uncertainties through 2060 Nature Communications |
| title | An assessment of China’s methane mitigation potential and costs and uncertainties through 2060 |
| title_full | An assessment of China’s methane mitigation potential and costs and uncertainties through 2060 |
| title_fullStr | An assessment of China’s methane mitigation potential and costs and uncertainties through 2060 |
| title_full_unstemmed | An assessment of China’s methane mitigation potential and costs and uncertainties through 2060 |
| title_short | An assessment of China’s methane mitigation potential and costs and uncertainties through 2060 |
| title_sort | assessment of china s methane mitigation potential and costs and uncertainties through 2060 |
| url | https://doi.org/10.1038/s41467-024-54038-y |
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