气候变化领域集成服务门户(CCPortal): Climate change mitigation potential in sanitation via off-site composting of human waste

CCPortal

DOI	10.1038/s41558-020-0782-4
	Climate change mitigation potential in sanitation via off-site composting of human waste
	McNicol G.; Jeliazovski J.; François J.J.; Kramer S.; Ryals R.
发表日期	2020
ISSN	1758-678X
起始页码	545
结束页码	549
卷号	10 期号:6
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. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	anthropogenic source; carbon dioxide; climate change; composting; emission control; global perspective; greenhouse gas; methane; sanitation; Sustainable Development Goal; waste disposal
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/142208
作者单位	Department of Natural Resources and Environmental Management, University of Hawai’i at Mānoa, Honolulu, HI, United States; Sustainable Organic Integrated Livelihoods, Cap-Haïtien, Haiti; L’Université Antènor Firmin, Cap-Haïtien, Haiti; Department of Life and Environmental Sciences, School of Natural Sciences, University of California, Merced, Merced, CA, United States; Department of Earth System Science, Stanford University, Stanford, CA, United States
推荐引用方式 GB/T 7714	McNicol G.,Jeliazovski J.,François J.J.,et al. Climate change mitigation potential in sanitation via off-site composting of human waste[J],2020,10(6).
APA	McNicol G.,Jeliazovski J.,François J.J.,Kramer S.,&Ryals R..(2020).Climate change mitigation potential in sanitation via off-site composting of human waste.Nature Climate Change,10(6).
MLA	McNicol G.,et al."Climate change mitigation potential in sanitation via off-site composting of human waste".Nature Climate Change 10.6(2020).