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Climate-friendly and nutrition-sensitive interventions can close the global dietary nutrient gap while reducing GHG emissions
journal contribution
posted on 2023-02-07, 00:26 authored by Ö Geyik, Michalis HadjikakouMichalis Hadjikakou, Brett BryanBrett BryanSustainable food systems require malnutrition and climate change to be addressed in parallel. Here, we estimate the non-CO2 greenhouse gas emissions resulting from closing the world’s dietary nutrient gap—that between country-level nutrient supply and population requirements—for energy, protein, iron, zinc, vitamin A, vitamin B12 and folate under five climate-friendly intervention scenarios in 2030. We show that improving crop and livestock productivity and halving food loss and waste can close the nutrient gap with up to 42% lower emissions (3.03 Gt CO2eq yr−1) compared with business-as-usual supply patterns with a persistent nutrient gap (5.48 Gt CO2eq yr−1). Increased production and trade of vegetables, eggs, and roots and tubers can close the nutrient gap with the lowest emissions in most countries—with ≤23% increase in total caloric production required for 2030 relative to 2015. We conclude that the world’s nutrient gap could be closed without exceeding global climate targets and without drastic changes to national food baskets.
History
Journal
Nature FoodVolume
4Pagination
61-73Location
Berlin, GermanyPublisher DOI
ISSN
2662-1355eISSN
2662-1355Language
EnglishPublication classification
C1 Refereed article in a scholarly journalIssue
1Publisher
SpringerUsage metrics
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No categories selectedKeywords
CONSUMPTIONDEMANDENVIRONMENTAL IMPACTSFood Science & TechnologyHEALTHLife Sciences & BiomedicinePOLICYPRODUCTIVITYScience & TechnologyVEGETABLESNutritionMetabolic and endocrine2 Zero Hunger13 Climate ActionSchool of Life and Environmental SciencesCentre for Integrative EcologyFaculty of Science Engineering and Built Environment
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