Since the beginning of her term, she has worked on strengthening ties and cooperation between Ile-de-France and European Institutions.
She was elected President of the Assembly of European Regions (AER) to the General Assembly in Tampere (Finland) from November 2008 to May 2013. Since May 2013, she is President of the interregional exchange program for young people, Eurodyssey, launched in 1985 by Edgar Faure, at that time President of the Franche-Comté Regional Council.
Founding Member of R20 Regions of Climate Action in 2010, together with Governor Arnold Schwarzenegger, she was appointed President in March 2012. R20 helps states, provinces, regions and other subnational governments around the world to develop, implement and communicate low-carbon and climate-resilient economic development projects, policies and best practices.