Arnaud Leroy is Graduate in International Law of the Sea and in the Protection of Marine Environment. He began his career in the European Parliament and was appointed, in 2001, Secretary General of the French Green delegation. In 2004, he joined the European Maritime Safety Agency where he was in charge of the protection of the marine environment. From 2012 to 2017, he was Member of Parliament of the French Living Abroad. Since March 2018, he is Chief Executive Director of the French Agency for Ecological Transition (ADEME).