From 5. to 19. February 2016 Jaša Čalogović visited Dr. Benjamin Laken at the Department of Geophysics, University of Oslo. The aim was to work on current research topics (eg. regional influences of cosmic rays on certain types of clouds), develop future research plans and strengthen the collaboration. During the stay J. Čalogović also gave a talk "A critical look at cosmic ray-cloud relationships" at Department of Geophysics.