Showing graphs of water supply to large cities such as Brisbane, São Paulo, and LasVegas which have all become dangerously close to running out of water in recent years, David Sedlak goes on to describe four ideas to make urban water supplies more resilient, ideas such as maximizing rainwater collection. In LosAngeles, for example, they are building a natural treatment process rainwater
Modern Urban Water Crisis TED Talk by David Sedlak
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