Dr Williams recently retired after nearly six years as Commissioner of the NSW Natural Resources Commission (NRC).
He was former Chief Scientist, NSW Department of Natural Resources following his retirement from CSIRO as Chief of Land and Water in 2004.
In 2005, he was awarded the prestigious Farrer Memorial Medal for achievement and excellence in agricultural science.
John is currently Adjunct Professor in Public Policy and Environmental Management at the Crawford School of the Australian National University and Adjunct Professor, Agriculture and Natural Resource Management, Institute Water, Land and Society, Charles Sturt University.
Dr Williams is a founding member of the Wentworth Group of Concerned Scientists.