A selection of outreach projects related to cosmic rays can be found by selecting the main topic Universe and the tag Cosmic Rays in the IPPOG Resources Portal: 

https://ippog-resources-portal.web.cern.ch/

most Global Cosmic projects holders present their activities at ICRC, the International Cosmic Ray Conference that takes place every second year. The first Outreach session was organised by DESY in 2021, followed by Japan in 2023 and CERN in 2025.