A brief message from UNEP Executive Director Achim Steiner to commemorate World Environment Day.
Achim Steiner - World Environment Day 2016
31 May 2016
with Achim Steiner
Senior Fellow of the Oxford Martin SchoolAchim Steiner was appointed Senior Fellow of the Oxford Martin School on 12 January 2026. Prior to joining the University of Oxford he served as United Nations Under-Secretary General and Administrator of the United Nations Development Programme (20...