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Ancient Peruvian Water-Harvesting System Could Lessen Modern Water Shortages

Kerry Hensley

   Sometimes, modern problems require ancient solutions.
   A 1,400-year-old Peruvian water-diverting method could supply up to
   40,000 Olympic-size swimming pools' worth of water to present-day Lima
   each year, according to new research published in [1]Nature
   Sustainability.
   It's one example of how indigenous methods could supplement existing
   modern infrastructure in water-scarce countries worldwide.
   More than a billion people across the world face water scarcity.
   Artificial reservoirs store rainwater and runoff for use during drier
   times, but reservoirs are costly, require years to plan and can still
   fail to meet water needs. Just last week, the [2]reservoirsin Chennai,
   India, ran nearly dry, forcing its 4 million residents to rely on
   government water tankers.

References

   1. https://www.nature.com/articles/s41893-019-0307-1
   2. https://www.voanews.com/south-central-asia/cities-run-low-water-india-searches-answers

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