- Representing the interests of associations or non-governmental organizations at international environmental conferences (climate, energy and water); Participation as an observer and reporting on the content of the conferences.
- Advising companies, business associations and non-governmental organizations on drafting written and oral statements at international environmental conferences (possibly also in English or French).
- Expert opinions on questions of international environmental law.
- Lectures on questions of international environmental law and the activities of the United Nations.
- Support in the preparation, implementation and follow-up of international conferences (both organizational and content-related support).
- Advice on immigration law issues, e.g. representation in administrative courts when visa applications are rejected.