globalchange  > 气候变化与战略
DOI: 10.1016/j.gloenvcha.2019.05.010
论文题名:
Country-specific dietary shifts to mitigate climate and water crises
作者: Kim B.F.; Santo R.E.; Scatterday A.P.; Fry J.P.; Synk C.M.; Cebron S.R.; Mekonnen M.M.; Hoekstra A.Y.; de Pee S.; Bloem M.W.; Neff R.A.; Nachman K.E.
刊名: Global Environmental Change
ISSN: 9593780
出版年: 2020
卷: 62
语种: 英语
中文关键词: Dietary change ; Food systems ; Greenhouse gas emissions ; Nutrition ; Sustainable diet ; Water footprint
英文关键词: bivalve ; climate change ; deforestation ; diet ; ecological footprint ; greenhouse ecosystem ; nutrition ; protein ; sustainability ; Animalia ; Bivalvia ; Hexapoda ; Mollusca ; Spondias purpurea
英文摘要: Undernutrition, obesity, climate change, and freshwater depletion share food and agricultural systems as an underlying driver. Efforts to more closely align dietary patterns with sustainability and health goals could be better informed with data covering the spectrum of countries characterized by over- and undernutrition. Here, we model the greenhouse gas (GHG) and water footprints of nine increasingly plant-forward diets, aligned with criteria for a healthy diet, specific to 140 countries. Results varied widely by country due to differences in: nutritional adjustments, baseline consumption patterns from which modeled diets were derived, import patterns, and the GHG- and water-intensities of foods by country of origin. Relative to exclusively plant-based (vegan) diets, diets comprised of plant foods with modest amounts of low-food chain animals (i.e., forage fish, bivalve mollusks, insects) had comparably small GHG and water footprints. In 95 percent of countries, diets that only included animal products for one meal per day were less GHG-intensive than lacto-ovo vegetarian diets (in which terrestrial and aquatic meats were eliminated entirely) in part due to the GHG-intensity of dairy foods. The relatively optimal choices among modeled diets otherwise varied across countries, in part due to contributions from deforestation (e.g., for feed production and grazing lands) and highly freshwater-intensive forms of aquaculture. Globally, modest plant-forward shifts (e.g., to low red meat diets) were offset by modeled increases in protein and caloric intake among undernourished populations, resulting in net increases in GHG and water footprints. These and other findings highlight the importance of trade, culture, and nutrition in diet footprint analyses. The country-specific results presented here could provide nutritionally-viable pathways for high-meat consuming countries as well as transitioning countries that might otherwise adopt the Western dietary pattern. © 2019 The Authors
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/168188
Appears in Collections:气候变化与战略

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作者单位: Johns Hopkins Center for a Livable Future, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21202, United States; Department of Environmental Health & Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, United States; Department of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, United States; Department of Health Sciences, Towson University, Towson, MD 21252, United States; Robert B. Daugherty Water for Food Global Institute, University of Nebraska, Lincoln, NE 68508, United States; University of Twente, Enschede, 7522 NB, Netherlands; Lee Kuan Yew School of Public Policy, National University of Singapore, Singapore, 259772, Singapore; United Nations World Food Programme, Rome, 00148, Italy; Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, United States; Risk Sciences and Public Policy Institute, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, United States

Recommended Citation:
Kim B.F.,Santo R.E.,Scatterday A.P.,et al. Country-specific dietary shifts to mitigate climate and water crises[J]. Global Environmental Change,2020-01-01,62
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