The objective of CMIP is to better understand past, present and future climate changes arising from natural, unforced variability or in response to changes in radiative forcing in a multi-model context. This understanding includes assessments of model performance during the historical period and quantifications of the causes of the spread in future projections. An important goal of CMIP is to make the multi-model output publicly available in a standardized format. KNMI contributes to CMIP6 with the global climate model EC-Earth. In particular, KNMI chairs the High-Resolution MIP (HighResMIP), and coordinates EC-Earth’s contributions to the Aerosols and Chemistry MIP (AerChemMIP).