In this project we will run simulations with the Earth System Models NorESM and WACCM. We will also use the project to run simulations with the cloud resolving model MIMICA and the chemical transport model TM5. This will be done to investigate aerosol impact on clouds and climate. The project will be used by the researchers within at the Physics Department in Lund University that work with any of the models mentioned above. The modelling simulations that we will run on this computational project is part of several different research projects funded by FORMAS, VR and Horizon Europe.