Integrating climate and food policies in higher education: a case study of the University of California

Most climate change mitigation policies, including those of higher education institutions, do not include food system greenhouse gas emissions (GHGE). Yet the food system contributes similar to 30% of anthropogenic GHGE, mostly from animal source foods. Food system changes are necessary to meet GHGE mitigation targets and could do so relatively inexpensively and rapidly with major health, social and environmental co-benefits. To estimate the potential impact of integrating higher education institution climate and food policies, we used the case of the University of California (UC), comprising 10 campuses with 280,000 students. The UC is a leader in climate and food research, and has major policy initiatives for mitigating climate change and for promoting healthy, sustainable food systems. Like most higher education institutions, the UC climate change mitigation target for 2025 covers only Scope 1 and 2 GHGE (campus-generated and purchased energy), yet Scope 3 GHGE (indirect, including food system) are often institutions' largest. We created scenarios using results of studies of US dietary changes, and existing, planned or potential UC food system changes. These scenarios could reduce UC Scope 3 food emissions by 42-55%, equivalent to 8-9% of UC's targeted energy GHGE reduction, and 19-22% of offsets need to reach that target. These results have implications for broader climate policy in terms of food systems' high GHGE, the health, environmental, economic and social benefits of food system changes, and ways these changes could be implemented. To our knowledge this is one of the first empirical studies of the potential for integrating climate and food policy in HEIs. Key policy insights Most higher education institution climate policies, including those of the University of California (UC), do not include food system GHGE Research at higher education institutions makes major contributions to understanding the need to reduce food system GHGE to achieve Paris Agreement goals Higher education institutions, including UC, have made many food system changes, but their climate co-benefits are not optimized, documented or integrated with climate policies Our food system change scenarios show that UC's food system could substantially reduce GHGE These changes can incentivize UC and other higher education institutions to integrate their climate and food policies.

Automated summary

Most climate change mitigation policies, including those of higher education institutions, do not consider food system greenhouse gas emissions. However, integrating food system changes can lead to substantial reductions in emissions, with major health, social, and environmental benefits. This study highlights the importance of incorporating food system emissions in climate policies and the potential for significant impact on mitigation efforts.