John Church is a Professor in the Climate Change Research Centre, University of New South Wales. He has published across a broad range of topics in oceanography. His area of expertise is the role of the ocean in climate, particularly anthropogenic climate change, and in understanding global and regional sea-level rise. He is the author of over 150 refereed publications, over 100 other reports and co-edited three books. He was co-convening lead author for the Chapter on Sea Level in the IPCC Third and Fifth Assessment Reports. He was awarded the 2006 Roger Revelle Medal by the Intergovernmental Oceanographic Commission, a CSIRO Medal for Research Achievement in 2006, the 2007 Eureka Prize for Scientific Research, the 2008 AMOS R.H. Clarke Lecture and the AMOS Morton Medal in 2017. He is a Fellow of the Australian Academy of Science, the Australian Academy of Technological Sciences and Engineering and the American Meteorological Society.