Professor Müller is Managing Director of Oxford Climate Policy (a not-for-profit company aimed at capacity building for developing country climate change negotiators), and Director of the European Capacity Building Initiative (ecbi), an international initiative for sustained capacity building in support of international climate change negotiations.
He was a Junior Research Fellow (1987-91), a Research Fellow (91-98) and has been a Supernumerary Fellow of Wolfson College since 2006.
At Oxford University he is Convener International Climate Policy Research at the Environmental Change Institute (ECI), Visiting Professor at the Social Sciences Division, and was a Member of the Faculty of Philosophy (1987-2024).
Müller received a doctorate in Philosophy from the University of Oxford and was formerly a Research Fellow at Wolfson College and a Lecturer in Logic at the Queen’s College, Oxford. He has a Diploma in Mathematics from the Eidgenössische Technische Hochschule (ETH) in Zürich, Switzerland.