University of Oxford

Professor of Quaternary Science, Aberystwyth University

Sorby Chair of Geoscience, University of Sheffield, UK

Emeritus Professor of Quaternary Science, University of Wales, Lampeter, UK

North Carolina State University

University of Wollongong

Royal Holloway University of London

Professor of Geography, Durham University, UK

Emeritus Professor, School of Science, University of Waikato, Hamilton, New Zealand

Emeritus Professor of Geography, University of Plymouth