Underestimated Methane Emissions from Solid Waste Disposal Sites Reveal Missed Greenhouse Gas Mitigation Opportunities  

作　　者：Yao Wang Chuanbin Zhou Ziyang Lou Houhu Zhang Abid Hussain Liangtong Zhan Ke Yin Mingliang Fang Xunchang Fei 

机构地区：[1]School of Civil and Environmental Engineering,Nanyang Technological University,Singapore 639798,Singapore [2]State Key Laboratory of Urban and Regional Ecology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China [3]Department of Environmental Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China [4]Nanjing Institute of Environmental Sciences,Ministry of Ecology and Environment,Nanjing 210042,China [5]Department of Civil and Environmental Engineering,Carleton University,Ottawa,ON K1S 5B6,Canada [6]Ministry of Education(MOE)Key Laboratory of Soft Soils and Geoenvironmental Engineering,Zhejiang University,Hangzhou 310058,China [7]Department of Environmental Engineering,School of Biology and the Environment,Nanjing Forestry University,Nanjing 210037,China [8]Department of Environmental Science and Engineering,Fudan University,Shanghai 200433,China

出　　处：《Engineering》2024年第5期12-15,共4页工程（英文）

基　　金：Nanyang Technological University(NTU),Singapore,for providing research scholarships for this study.The authors thank the supports from Debris of the Anthropocene to Resources(DotA2)Lab at NTU.

摘　　要：1.Introduction Cities are responsible for approximately 70%of all anthropogenic greenhouse gas(GHG)emissions and about 60%of all anthropogenic methane(CH4)emissions[1,2].Solid waste disposal sites(including landfills and dumpsites),which are prevalent in global cities,emit CH4 generated from the anaerobic biodegradation of municipal solid waste(MSW).Notably,the proportions of CH4 emissions from disposal sites surpass 50%of the total CH4 emissions in some megalopolises[3].CH4 has a high global warming potential(GWP),being 28 times stronger than carbon dioxide(CO_(2))over a 100-year period and 80 times stronger over a 20-year period[4].Understanding and mitigating CH4 emissions from solid waste disposal sites is particularly pertinent and pressing,considering that the latest Synthesis Report from the Intergovernmental Panel on Climate Change(IPCC)emphasizes that the current pace of mitigation and adaptation policies and measures falls short of restraining global temperature rise to under 1.5℃ within the 21st century[4].More than 150 countries signed the Global Methane Pledge at the United Nations Climate Change Conference in Glasgow(COP26),which aims to reduce global annual CH4 emissions by 30%by 2030,compared with emissions in 2020[5].

关 键 词：LANDFILL SOLID restrain 

分 类 号：X705[环境科学与工程—环境工程]