Emissions of anthropogenic aerosol and precursor compounds substantially alter the Earth’s radiative balance, change the oxidation capacity of the atmosphere, alter cloud processes and precipitation amounts, and result in significant impacts on human health and ecosystems. One of the primary tools used to examine these effects are global models. There are a number of characteristics of emissions that can influence model results, such as seasonality and assumed injection height, that are not either uncertain or not specified in current global datasets. The aim of Emissions-MIP is to quantify the influence of these characteristics on model results. Archived here are emissions data developed for use as part of the Emissions-MIP project model experiments.