OBJECTIVES To estimate all-cause and cause-specific deaths attributable to fossil fuel-related air pollution and to assess potential health benefits from policies that replace fossil fuels with clean, renewable energy sources. METHODS An updated atmospheric composition model, a newly developed relative risk model and recent satellite-based data were used to determine exposure to ambient air pollution, estimate all-cause and disease-specific mortality, and attribute them to emission categories. DATA SOURCES Data of the Global Burden of Disease 2019, NASA satellite-based fine particulate matter and population data, and atmospheric chemistry, aerosol and relative risk modelling for 2019.