2020-2022 Visiting scholar to represent the teaching of the Chair of International Relations at the University of Hamburg

2019-2020: Research associate at the Institute for Ecological Economy Research gemeinnützige GmbH, Berlin

2016-2019: Junior Professor Environmental Governance at the Open Universiteit of the Netherlands

2015-2016: Humboldt Fellowship/Guest Professor at the Centre for Sustainability and the Department of Political Science, Lund University, Sweden

2012-2015: Substitute Professor for International Politics at the University of Hamburg, the Martin Luther University Halle-Wittenberg and the FernUniversität in Hagen

2009-2012: Research associate at the Climate Cluster of Excellence CliSAP at the University of Hamburg

2002-2009: Research Assistant for International Relations at the University of Hamburg

2001-2002: Research Associate (Political Science) at the Secretariat of the German Advisory Council on Global Change (WBGU)

2000-2001: Freelance facilitator of large group processes and stakeholder dialogues for a trade union and the environmental expert committee

2000-2001: Research associate in the exploratory project on social-ecological research "Global Climate Change" at the FU Berlin

2016: Habilitation in political science at the University of Hamburg. Topic: "The discursive construction of climate change as a security threat".

1995-2000: PhD in Environmental Sciences at the University of East Anglia in Norwich, England on the topic: "Stakeholder Dialogues in Local Agenda 21 in an English-German Comparison".

1992-1995: Intermediate Diploma in Technical Environmental Protection at the TU Berlin