In the first 90 days of the campus shutdown, UCSF saw a total estimated reduction of 12,165 metric tons of carbon dioxide equivalent (CO2e), which is approximately 9% of its total emissions. Eliminating nonessential business travel reduced scope 3 emissions by an estimated 4,690 metric tons of CO2e. Energy and water use reductions saved $1 million and avoided 875 metric tons of CO2e. Use of telehealth, UCSF Health’s tool for virtual outpatient visits, increased significantly between February and April, reducing carbon emissions from expected patient travel by 6,600 metric tons of CO2e in the first 90 days. Emissions were eliminated from vehicle and air travel from patients who would have come from across the western U.S.