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Ancient water-saving can help modern Peru

05 Jul 2019
Andean highlands
Panoramic view of the Andean highlands in the Chillon river basin where Huamantanga is located. The city of Lima would be downstream in the horizon background. (Image courtesy: Sam Grainger, Imperial College London, 2015)
There’s plenty to learn in modern Peru from the designers of ancient water-saving methods, scienti

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