The second book in the ThinkCities series explores water as a precious, finite resource, tracing its journey from source, through the city, and back again. Living in cities where water flows effortlessly from our taps and fountains, it’s easy to take it for granted. City of Water, the second book in the ThinkCities series, shines a light on the water system that is vital for our health and well-being. The narrative traces the journey of water from the forests, mountains, lakes, rivers and wetlands that form the watershed, through pipes and treatment facilities, into our taps, fire hydrants and toilets, then out through storm and sewer systems toward wastewater treatment plants and back into the watershed. Along the way we discover that some of the earliest cities with water systems date back to the Indus Valley in 2500 BC; that in 1920 only 1 percent of the US population had indoor plumbing; that if groundwater is used up too quickly, the land can actually sink; and more. The text is sprinkled with fun and surprising facts — some water fountains in Paris offer sparkling water, and scientists are working to extract microscopic particles of precious metals found in sewage. Readers are encouraged to think about water as a finite resource, and to take action to prevent our cities and watersheds from becoming more polluted. More than 2 billion people in the world are without access to safe, fresh water at home. As the world’s population grows, along with pollution and climate change, access to clean water is becoming an urgent issue. Includes practical steps that kids can take to help conserve water. The ThinkCities series is inspired by the urgency for new approaches to city life as a result of climate change, population growth and increased density. It highlights the challenges and risks cities face, but also offers hope for building resilience, sustainability and quality of life as young people advocate for themselves and their communities. Correlates to the Common Core State Standards in English Language Arts: CCSS.ELA-LITERACY.RL.3.3 Describe the relationship between a series of historical events, scientific ideas or concepts, or steps in technical procedures in a text, using language that pertains to time, sequence, and cause/effect.
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