With this public Inaugural Lecture, ZEF senior researcher Dr Tina Beuchelt concludes the process of "Habilitation" at the University of Bonn. "Habilitation" In German-speaking countries allows the degree holder to bear the title PD (for "Privatdozent"). The habilitation thesis is intended to demonstrate that the author has mastered their field in its entirety. For this reason, it is usually written on a topic that is very different from the subject of the doctoral dissertation. In a pre-final step Tina had already been granted the "Ability to teach" (Venia Legendi) in ‘Sustainable Land and Food Systems’ by the Faculty of Agricultural, Nutritional and Engineering Sciences at the University of Bonn on Wednesday, July 8, 2026 after she delivered a Habilitation Colloquium at the Faculty on the topic "Towards equity and justice in the socio-ecological transformation of land and food systems".