Bachelor of Science with Honors and Doctor of Philosophy from the University of Western Australia. He was the founding director of the Australian Rivers Institute at Griffith University in Brisbane, Australia. His main research interests are the ecology of rivers and wetland systems, with a particular focus on the science to underpin river management. He has extensive experience working with international and Australian government agencies and industry on water resources management issues. Member of the Murray-Darling Basin Authority and has served as National Water Commissioner of Australia, Chair of the Lake Eyre Basin Ministerial Forum Science Advisory Panel, Chair of the Scientific Committee for Healthy Land and Limited Water, and as Director of Land and Water Australia. Recently appointed a member of the Earth Commission, hosted by Future Earth, and elected a member of the Australian Academy of Sciences in 2022.