气候变化领域集成服务门户(CCPortal): A global comparison of carbon-water-food nexus based on dietary consumption

CCPortal

DOI	10.1016/j.gloenvcha.2022.102489
	A global comparison of carbon-water-food nexus based on dietary consumption
	Fan J.-L.; Feng X.; Dong Y.; Zhang X.
发表日期	2022
ISSN	0959-3780
卷号	73
英文摘要	Exploring the environmental impact of dietary consumption has become increasingly important to understand the carbon-water-food nexus, vital to achieving UN sustainable development goals. However, the research on diet-based nexus assessment is still lacking. Here, we developed an Environmentally Extended Multi-Regional Input-Output (EE-MRIO) model with compiling a global MRIO table based on the latest Global Trade Analysis Project (GTAP) 10 database, where we specifically constructed a water withdrawal account and matched it to each economy at the sectoral level. The regional heterogeneity and synergy of carbon-water nexus affected by dietary patterns in nine countries was explored. The results show that: (1) Dietary consumption is the main use of water withdrawal for each country; Japan, the US, South Korea, and India have a high per capita dietary water footprint. Mainly due to consumption of processed rice, Japan has the highest per capita value of 488 M3/year, accounting for 63.4% of the total water footprint. (2) The total dietary carbon footprints in China, India, and the US are high, which is mainly caused by the high consumption of animal products (including dairy) either due to the large population (China, India) or animal-based diet (the US). Americans have the highest per capita dietary carbon footprint, reaching 755.4 kg/year, 2.76 times that of the global average. (3) Generally, imported/foreign footprints account for a greater share in dietary water and carbon footprints of developed countries with an animal-based diet. (4) In the nexus analysis, the US, Japan, and South Korea are key-nexus countries, vegetables, fruit and nuts, tobacco and beverages, and other food products are selected as key-nexus sectors with relatively high dietary water and carbon footprint. Furthermore, dietary consumption choices lead to different environmental impacts. It is particularly important to find a sustainable dietary route adapted to each country considering that heterogeneity and synergism exist in key-nexus sectors to achieve the relevant Sustainable Development Goals. © 2022 Elsevier Ltd
英文关键词	Carbon and water footprints; Dietary consumption; Environmental sustainability; Input-output analysis; Key-nexus sectors
语种	英语
scopus关键词	carbon flux; carbon footprint; environmental impact; global perspective; heterogeneity; spatiotemporal analysis; Sustainable Development Goal; China; India; Japan; South Korea; United States
来源期刊	Global Environmental Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/256654
作者单位	Center for Sustainable Development and Energy Policy Research (SDEP), School of Energy & Mining Engineering, China University of Mining & Technology (Beijing), Beijing, 10083, China; State Key Laboratory of Coal Resources and Safe Mining (China University of Mining and Technology), Beijing, 100083, China; The Administrative Centre for China's Agenda 21 (ACCA21), Ministry of Science and Technology (MOST), Beijing, 100038, China
推荐引用方式 GB/T 7714	Fan J.-L.,Feng X.,Dong Y.,et al. A global comparison of carbon-water-food nexus based on dietary consumption[J],2022,73.
APA	Fan J.-L.,Feng X.,Dong Y.,&Zhang X..(2022).A global comparison of carbon-water-food nexus based on dietary consumption.Global Environmental Change,73.
MLA	Fan J.-L.,et al."A global comparison of carbon-water-food nexus based on dietary consumption".Global Environmental Change 73(2022).