The global cement industry is a significant contributor to anthropogenic CO₂ emissions, ranking third after fossil fuels and land-use change. This study aims to provide a more accurate estimate of global process emissions from cement production by assembling and analyzing various datasets, prioritizing official data and emission factors. The analysis reveals that global process emissions in 2016 were 1.45 ± 0.20 Gt CO₂, equivalent to about 4% of fossil fuel emissions. Cumulative emissions from 1928 to 2016 were 39.3 ± 2.4 Gt CO₂, with 66% occurring since 1990. Emissions in 2015 were 30% lower than those reported by the Global Carbon Project. The study highlights the importance of using official and reliable data sources to improve the accuracy of global carbon budgets and emissions inventories.The global cement industry is a significant contributor to anthropogenic CO₂ emissions, ranking third after fossil fuels and land-use change. This study aims to provide a more accurate estimate of global process emissions from cement production by assembling and analyzing various datasets, prioritizing official data and emission factors. The analysis reveals that global process emissions in 2016 were 1.45 ± 0.20 Gt CO₂, equivalent to about 4% of fossil fuel emissions. Cumulative emissions from 1928 to 2016 were 39.3 ± 2.4 Gt CO₂, with 66% occurring since 1990. Emissions in 2015 were 30% lower than those reported by the Global Carbon Project. The study highlights the importance of using official and reliable data sources to improve the accuracy of global carbon budgets and emissions inventories.