Environmental Health 64 2021 Sustainability Report A Modern, High-Performing Health System Introduction Our People and Culture Responsible Business Practices Performance Data Leading systemic change across the health system 1. He alth care supply chain and infrastructure The U.S. health care system is responsible for 8.5% of U.S. carbon emissions stemming from health care facility operations, energy consumption, and the supply chain of goods and services. Recognizing the critical need to reduce the carbon footprint of the U.S. health care system, UnitedHealth Group is proud to be part of the National Academy of Medicine’s Action Collaborative on Decarbonizing the U.S. Health Sector, co-chaired by our CEO. This public-private collaborative with leaders from the federal government, pharmaceutical and hospital industries, and health professionals, seeks to address the health sector’s environmental impact by focusing on four key areas. The collaborative seeks to mobilize the health care sector by establishing shared decarbonization goals and evidence- based solutions to protect human health globally and build a more equitable health system. 2. He alth care delivery 3. He alth professional education and communication 4. P olicy, financing and metrics