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Reduction of the carbon footprint of college freshman diets after a food-based environmental science course

The goal of this study was to evaluate the impact of a two-quarter freshman course series entitled “Food: A Lens for Environment and Sustainability” (Food cluster) on the carbon footprint of food choices by college freshmen attending a large public university in California. Students enrolled in the...

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Bibliographic Details
Published in:Climatic change 2019-06, Vol.154 (3-4), p.547-564
Main Authors: Jay, Jennifer A., D’Auria, Raffaella, Nordby, J. Cully, Rice, David Andy, Cleveland, David A., Friscia, Anthony, Kissinger, Sophie, Levis, Marc, Malan, Hannah, Rajagopal, Deepak, Reynolds, Joel R., Slusser, Wendelin, Wang, May, Wesel, Emily
Format: Article
Language:English
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Summary:The goal of this study was to evaluate the impact of a two-quarter freshman course series entitled “Food: A Lens for Environment and Sustainability” (Food cluster) on the carbon footprint of food choices by college freshmen attending a large public university in California. Students enrolled in the course completed a baseline questionnaire about their diets in early fall quarter and then again at follow-up, about 6 months later at the end of the winter quarter. The control group consisted of freshmen enrolled in a different course series entitled “Evolution of the Cosmos and Life” (Cosmos cluster). The instruction in the Food cluster included lecture material on general environmental science and life cycle analyses of food, an analysis of a reading comparing the environmental footprint of various types of meats, and classroom exercises to calculate the environmental footprint of typical foods. The Cosmos cluster instruction included climate change, but no information about food. While the two groups were statistically indistinguishable at baseline, throughout the period of the study, Food cluster students decreased (a) their overall dietary carbon footprint for a 2000-kcal normalized diet by 7% ( p  = 0.062), (b) the beef component of their dietary carbon footprint by 19% ( p  = 0.024), and (c) their reported ruminant consumption by 28% ( p  
ISSN:0165-0009
1573-1480
DOI:10.1007/s10584-019-02407-8