The coastal region of Peru has one of the world’s least reliable water supplies, which dwindles dramatically during its dry season, meaning Lima especially struggles to supply water to its growing population. However, scientists believe that an existing Pre-Incan water flow system engineered just for this problem could help Peru to better manage its water. They believe that this system, which is 1400 years old, used in conjunction with modern methods, could help to create a stable and sustainable water supply for cities such as Lima. World’s most unstable water conditions The availability of water is a major concern for the coastal districts of Peru, which is the location of the country’s capital, Lima. home to twelve million people. This
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