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Urban Water Systems: Drivers of Climate Change?

Urban water systems contribute to climate change bothdirectly through the fugitive greenhouse gas (GHG) emissions associated with water storage reservoirs and wastewater treatmentprocesses, and indirectly through significant energy and materials consumption. This paper presents the findings of an investigation of the GHG emissions associated with operating a case study urban water system in Melbourne, Australia. It was revealed that the appliances associatedwith the residential end uses of water were responsible for significantly more GHG emissions than all upstream and downstream operations.


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