William Lowrie is Professor Emeritus of Geophysics at the Institute of Geophysics at Eidgenössische Technische Hochschule Zürich, Switzerland, where he taught geophysics and carried out research in rock magnetism and paleomagnetism. He graduated from the University of Edinburgh in 1960 with first class honors in physics, before completing a masters degree in geophysics at the University of Toronto and a doctorate at the University of Pittsburgh. He has been President of the European Union of Geosciences (1987-9) and Section President and Council member of the American Geophysical Union (2000-2). He is a Fellow of AGU and a Member of the Academia Europaea.