Limiting red meat availability in a university food service setting reduces food-related greenhouse gas emissions by one-third

Nathalie J. Lambrecht (), Lesli Hoey, Alex Bryan, Martin Heller and Andrew D. Jones
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Nathalie J. Lambrecht: University of Michigan
Lesli Hoey: University of Michigan
Alex Bryan: University of Michigan
Martin Heller: University of Michigan
Andrew D. Jones: University of Michigan

Climatic Change, 2023, vol. 176, issue 6, No 1, 20 pages

Abstract: Abstract Higher Education Institutions (HEI) can contribute to climate change mitigation through reductions in food-related greenhouse gas (GHG) emissions. We examined the impact of serving a low-red meat menu 1 day per week on the GHG emissions associated with residential dining halls at a university setting in the USA. We also estimated the potential impacts of replacing meat with lower-emission proteins on GHG emissions and cost using hypothetical substitution scenarios. Food items procured to prepare daily meals were linked to GHG emissions values. During one academic term, a “Sustainable Mondays” intervention was implemented, wherein dining halls reduced red meat dishes on Mondays. We compared GHG emissions on Mondays with Wednesdays. We then developed substitution scenarios that replaced beef, red meat, or all meats and fish with lower-emission protein sources on a per gram of protein basis. Overall, the University dining service food procurement emitted 4661 metric tonnes CO2-eq in one academic term, of which 81% came from animal-source foods. Dining halls reduced red meat procurement by 81% on “Sustainable Mondays,” resulting in 240 fewer metric tonnes of CO2-eq (− 31% compared to Wednesdays). We estimated that replacing red meat with lower-emission meat and red meat/poultry with fish or plant-based proteins could reduce GHG emissions by 14–46%. Our study suggests there is considerable potential for HEI to reduce climate impacts through simple replacements of red meat with lower-emission proteins. Achieving the necessary scales of meat reduction in HEI likely requires institution-wide transformation with changes to food procurement, dining hall choice architecture, and education for students and staff.

Keywords: Higher Education Institutions; Greenhouse gas emissions; Scope 3 emissions; Climate policy; Climate change mitigation; Dietary change (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1007/s10584-023-03543-y

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