A study from Sweden's University of Gothenburg and Chalmers University of Technology looked at how to cut carbon emissions from school meals without turning students off. Researchers worked with six public schools in Lund, where lunch is a free buffet with a vegetarian option every day. Four schools cut meal emissions by 20% through recipe reformulation and added more all-vegetarian days. The key finding: students accepted the changes better when meat was reduced inside familiar dishes rather than replaced entirely with meat-free days. Students already knew that red meat has a higher carbon footprint than vegetarian food, but that knowledge did not drive their lunch choices. Taste, fullness, and familiarity mattered more. The study also found that students were slightly more supportive of putting less meat in recipes than of adding more all-vegetarian days. The authors suggest that recipe reformulation is a practical complement to meat-free days, because it cuts emissions while keeping meals close to what students already eat.
