As part of the ERASMUS+ programme, students of the ICBM have the chance to study at a partner university abroad. Maybe also the partners of the Institute for Biology and Environmental Science (IBU) are of intererst: https://uole.de/geo/erasmus-partnerschaften
Furthermore, the university also cooperates with many universities out of europe: https://uole.de/wege-ins-ausland/partneruniversitaeten-studierendenaustausch

For the overview of partner universities within Europe, please check the German version of this webpage.