The Rosdi irrigation system lets plants draw water through salt filters in irrigation pipes at their roots, using the tiny amounts of energy naturally created by evaporation at their leaves.


Greg Leslie is employed at the University of New South Wales as an Associate Professor in the School of Chemical Sciences and Engineering. Prior to that Greg was employed by the Orange County Water District (OCWD) in Fountain Valley, California as the deputy programme manager for the Groundwater Water Replenishment System; a $US 350M indirect potable water reuse project.

Bruce Sutton 

Bruce’s initial degree was in Agricultural Science up in Queensland, then he did a PhD in Environmental Biology at ANU, followed by a postdoc in California, studying cactus metabolism in desert environments. In 1975 he took up lectureship in agronomy at Sydney Uni where he developed an interest in efficient water use by crops, leading to research in irrigation, particularly drip irrigation, sustainable cropping systems and waste management as it intersected with agriculture, eg, using waste water for irrigation, recycling organics through agriculture. Bruce’s final four years of university career were spent as Chair of the Academic Board of the University of Sydney, he retired in 2009, Bruce is now an Honorary Professor in Faculty of Agriculture, Food and Natural Resources at Sydney University and Visiting Fellow at UNSW. 


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