Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41558-020-0782-4 |
Climate change mitigation potential in sanitation via off-site composting of human waste | |
McNicol, Gavin1,5; Jeliazovski, Julie2; Francois, Junior Jules2,3; Kramer, Sasha2; Ryals, Rebecca1,4 | |
2020-06-01 | |
发表期刊 | NATURE CLIMATE CHANGE |
ISSN | 1758-678X |
EISSN | 1758-6798 |
出版年 | 2020 |
卷号 | 10期号:6页码:545-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Haiti |
英文摘要 | Approximately 4.5 billion people lack access to safely managed sanitation globally, and 1 billion live in slums, often relying on anaerobic waste containment in pit latrines. Providing access to safely managed sanitation may lead to reduced GHG emissions and thus simultaneously address both Sustainable Development Goals. Here we measure cumulative GHG emissions of carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) during the off-site composting of human waste to estimate scalable emission factors. We find that CH4 emission factors are one to two orders of magnitude smaller than IPCC values for other excreta collection, treatment and disposal processes. After accounting for GHG emissions throughout the sanitation cycle, including transport, urine and compost end-use, the climate change mitigation potential is 126 kg of CO2-equivalent per capita per year for slum inhabitants. If scaled to global slum populations, composting could mitigate 3.97 Tg CH4 yr(-1), representing 13-44% of sanitation sector CH4 emissions. Human waste in slums is often collected untreated in pit latrines, which emit GHGs and have negative impacts on human health. If adopted in slums globally, off-site composting could reduce methane emissions from the sanitation sector by 13-44% while improving public health. |
领域 | 资源环境 |
收录类别 | SCI-E ; SSCI |
WOS记录号 | WOS:000537042800009 |
WOS关键词 | ORGANIC-MATTER AMENDMENTS ; GREENHOUSE-GAS EMISSIONS ; METHANE EMISSIONS ; SOLID-WASTE ; MANAGEMENT ; CARBON ; RECOVERY ; IMPACTS |
WOS类目 | Environmental Sciences ; Environmental Studies ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/273391 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Hawaii Manoa, Dept Nat Resources & Environm Management, Honolulu, HI 96822 USA; 2.Sustainable Organ Integrated Livelihoods, Cap Haitien, Haiti; 3.Univ Antenor Firmin, Cap Haitien, Haiti; 4.Univ Calif Merced, Sch Nat Sci, Dept Life & Environm Sci, Merced, CA USA; 5.Stanford Univ, Dept Earth Syst Sci, Stanford, CA 94305 USA |
推荐引用方式 GB/T 7714 | McNicol, Gavin,Jeliazovski, Julie,Francois, Junior Jules,et al. Climate change mitigation potential in sanitation via off-site composting of human waste[J]. NATURE CLIMATE CHANGE,2020,10(6):545-+. |
APA | McNicol, Gavin,Jeliazovski, Julie,Francois, Junior Jules,Kramer, Sasha,&Ryals, Rebecca.(2020).Climate change mitigation potential in sanitation via off-site composting of human waste.NATURE CLIMATE CHANGE,10(6),545-+. |
MLA | McNicol, Gavin,et al."Climate change mitigation potential in sanitation via off-site composting of human waste".NATURE CLIMATE CHANGE 10.6(2020):545-+. |
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