Australian politicians have a history of opting for high-cost, high-emissions desalination projects. The Queensland government is still wary of using the largely untapped resource of recycled water.
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Researchers have long argued that greywater could bolster South Africa’s food security if it’s used to water domestic food gardens.
To continue to sustain or grow populations — and economies — more is going to have to be done with the same amount of water, or even less.
Once water is used in washing, cleaning or even sewerage it can be safely and reliably treated. The treated water is then safe to drink – identical to the original water.
Wastewater reuse suffers from a perception problem.
Cities relied entirely on conserving and recycling water to get through the last big drought. We now have desalination plants, but getting the most out of our water reserves still makes sense.
Perth is looking at recycling all its sewage in the city’s future water supply. But many Australians’ drinking water already contains indirectly recycled treated sewage.
Australian cities have turned to some very costly solutions when water is scarce. But as the world’s second-highest users of water per person, more efficient use and recycling are key.
There is no longer any good reason to waste any type of water. We have the technology to turn waste water into a vital resource.
In light of climate change and a growing population, water authorities around the world are looking to recycled water.
Despite its long idle, Melbourne’s desalination plant plays a vital role in providing water in a drying climate.
Australians eat a lot of water. Nearly 500 L is required to produce the food each of us eats every day.
Top contributors
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Senior Lecturer in Environmental Science, Western Sydney University
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Associate Professor of History, Australian National University
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Senior Research Fellow, Institute for Sustainable Industries and Liveable Cities, Victoria University, Victoria University
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Director of the Institute for Sustainability and Innovation, Victoria University
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Associate Professor of Economics, Monash University
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Senior Lecturer in Food Systems, The University of Melbourne
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Research Fellow: Food and Urban Systems, University of Helsinki
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Professor, UTS Institute for Public Policy and Governance and UTS Centre for Local Government, University of Technology Sydney
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Researcher in sustainable food systems, The University of Melbourne
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Professor of History, The University of Western Australia
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Academic Officer, Water Resource Management Unit lead, Institute for Integrated Management of Material Fluxes and of Resource (UNU-FLORES), United Nations University
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Researcher, School of Chemistry, University of the Witwatersrand, University of the Witwatersrand
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Senior Lecturer, Western Sydney University
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Lecturer in History, University of the Sunshine Coast
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Professor of Geospatial Sciences, University of the Western Cape
