The University of Helsinki is nearly 400 years old and the leading university in Finland. In 2020, the University of Helsinki placed 74th in the Shanghai Ranking. The University has 32,000 students and 7,800 employees. The university is a top research university and is e.g. a member of the League of European Research Universities. The UHel team is a part of the Institute of Atmospheric and Earth System Research (INAR) of the Faculty of Science, ranked 35th in the world by the international Shanghai Ranking in 2020, an exceptionally high- level research and learning environment. INAR is a multi- and interdisciplinary research unit based in physics, chemistry, meteorology, forest sciences, environmental sciences and social sciences employing over 250 people. INAR aims to strengthen the internationally leading, integrated multidisciplinary research and education environment for Earth system science and to feed in scientific results for the national and international environment and climate policy. It performs multiscale research from molecular to global scale and focuses on climate change, air quality, biogeochemical cycles and ecosystem processes. INAR is a part of the research team completing the Coupled Model Intercomparison Project Phase 6 (CMIP6) simulations with the EC-Earth System Model.