A 1,400-year-old Peruvian method of diverting water could supply up to 40,000 Olympic-size swimming pools' worth of water to Lima each year. That information comes from a new study published in Nature Sustainability. It's one example of how ancient methods could support existing modern ones in countries without enough water. More than a billion people across the world face water shortages. Man-made reservoirs store rainwater and water overflow for use during drier times. But reservoirs are costly, require years to plan and can still fail to meet water needs. Recently, for example, the reservoirs in Chennai, India, went almost dry. The city’s four million people had to then depend on water transports from the government. Peru's capital, Lima, depends on water from rivers high in the Andes Mountains. It takes only a few days for water to flow down to the city. So when the dry season begins in the mountains, the water supply quickly disappears. The city suffers shortages of 43 million cubic meters during the dry season. It resolves this with modern structures such as man-made reservoirs.
Title: Ancient Water System in Peru Could Fix Water Shortages
Content: <div id='article-page'><div id='article-content' data-media-url='//news-app-staging.s3.amazonaws.com' data-base-url='//news-app-staging.herokuapp.com' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3469/88524b5f-daed-4ecb-8975-cc75b8c01970_hq.wav' data-capture-url='//staging.analytics.lingraphica.com/events/capture_news' data-article-title='Ancient Water System in Peru Could Fix Water Shortages' data-article-id='3949'><script src='//news-app-staging.herokuapp.com/javascripts/getscripts.js'></script><link rel='stylesheet' href='//news-app-staging.herokuapp.com/stylesheets/article.css' type='text/css' /><div class='article'><p><span data-start-time='0' data-end-time='16042'>A 1,400-year-old Peruvian method of diverting water could supply up to 40,000 Olympic-size swimming pools' worth of water to Lima each year.</span> <span data-start-time='16042' data-end-time='23604'>That information comes from a new study published in Nature Sustainability.</span> <span data-start-time='23604' data-end-time='34771'>It's one example of how ancient methods could support existing modern ones in countries without enough water.</span> <span data-start-time='34771' data-end-time='41417'>More than a billion people across the world face water shortages.</span> <span data-start-time='41417' data-end-time='50292'>Man-made reservoirs store rainwater and water overflow for use during drier times.</span> <span data-start-time='50292' data-end-time='59917'>But reservoirs are costly, require years to plan and can still fail to meet water needs.</span> <span data-start-time='59917' data-end-time='67667'>Recently, for example, the reservoirs in Chennai, India, went almost dry.</span> <span data-start-time='67667' data-end-time='75750'>The city’s four million people had to then depend on water transports from the government.</span> <span data-start-time='75750' data-end-time='84375'>Peru's capital, Lima, depends on water from rivers high in the Andes Mountains.</span> <span data-start-time='84375' data-end-time='90396'>It takes only a few days for water to flow down to the city.</span> <span data-start-time='90396' data-end-time='98854'>So when the dry season begins in the mountains, the water supply quickly disappears.</span> <span data-start-time='98854' data-end-time='108104'>The city suffers shortages of 43 million cubic meters during the dry season.</span> <span data-start-time='108104' data-end-time='115104'>It resolves this with modern structures such as man-made reservoirs.</span> </p></div><div class='control-buttons-sticky' style='display:none;'><div class='control-buttons'><button title='Back' class='back' disabled='disabled'></button><button title='Play' class='play' disabled='disabled'></button><button title='Pause' class='pause' style='display:none;'></button><button title='Forward' class='forward' disabled='disabled'></button><button class='finished-reading' style='display:none;'>Done</button></div></div></div><div id='article-media'><div id='media-image'><img src='https://news-app-production.s3.amazonaws.com/articles/3469/B096BB4C-CA53-4BBD-95CD-92364E98A664_cx0_cy6_cw0_w1023_r1_s.jpg'/></div></div><div id='question-content' style='display:none;'><div class='vocabulary_question question-container' data-question-id=13189 data-hint-location='0' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3469/what_does_divert_mean.wav'>What does divert mean?</div><div class='choices' data-correct-choice='to change the direction or use of something'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3469/to_be_excluded.wav'><span>to be excluded</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3469/to_change_the_direction_or_use_of_something.wav'><span>to change the direction or use of something</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3469/to_eat_or_drink_something.wav'><span>to eat or drink something</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3469/to_complain.wav'><span>to complain</span></div></div></div><div class='multiple_choice_question question-container' data-question-id=13190 data-hint-location='34771' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3469/more_than_a_billion_people_across_the_world_face_what_shortages.wav'>More than a billion people across the world face what shortages?</div><div class='choices' data-correct-choice='water'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3469/computer.wav'><span>computer</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3469/soil.wav'><span>soil</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3469/food.wav'><span>food</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3469/water.wav'><span>water</span></div></div></div><div class='sentence_completion_question question-container' data-question-id=13191 data-hint-location='90396' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3469/so_when_the_dry_season_begins_in_the_mountains_the_water_supply_quickly__blank_.wav'>So when the dry season begins in the mountains, the water supply quickly <span class='blank'>disappears</span>.</div><div class='choices' data-correct-choice='disappears'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3469/quits.wav'><span>quits</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3469/multiplies.wav'><span>multiplies</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3469/overflows.wav'><span>overflows</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/3469/disappears.wav'><span>disappears</span></div></div></div><div class='question-buttons'><button class='skip-button'></button><button class='hint-button'></button><button class='speak-button'></button></div></div></div>
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