When the World Runs Dry

Earth's Water in Crisis


By Nancy F. Castaldo

Formats and Prices




$15.99 CAD

This item is a preorder. Your payment method will be charged immediately, and the product is expected to ship on or around January 18, 2022. This date is subject to change due to shipping delays beyond our control.

A riveting account of the worldwide water crisis–and what kids can do about it–from an award-winning science writer.

What would you do if you turned on the faucet one day and nothing happened? What if you learned the water in your home was harmful to drink? Water is essential for life on this planet, but not every community has the safe, clean water it needs. In When the World Runs Dry, award-winning science writer Nancy Castaldo takes readers from Flint, Michigan, and Newark, New Jersey, to Iran and Cape Town, South Africa, to explore the various ways in which water around the world is in danger, why we must act now, and why you’re never too young to make a difference.

Topics include: Lead and water infrastructure problems, pollution, fracking contamination, harmful algal blooms, water supply issues, rising sea levels, and potential solutions. 


  • A Skipping Stones Award Honoree
    Short-listed for the Green Earth Book Award
    A Junior Library Guild Selection

    "This refreshingly (no pun intended) readable and engrossing book on the state of the world's water supply is an important read." --Youth Services Review, 5-star review

    "This is the book to read if you want to go from depressed to fired-up and ready for action." --Audubon

    "The narrative balances wide-ranging information with accessible prose . . . [an] invaluable tome that underscores an imperative crisis." --Publishers Weekly

    "Impeccably researched and sourced . . . This book holds substantial value as a classroom text." --Booklist

On Sale
Jan 18, 2022
Page Count
208 pages

Nancy F. Castaldo

Nancy F. Castaldo

About the Author

Nancy F. Castaldo has been writing about the planet for over 20 years. She’s contributed to the Sierra Club Waste Paper, NRDC’s Personal Action column, and others. She is the author of many STEM books including, Sniffer Dogs: How Dogs (and Their Noses) Save the World, Back from The Brink: Saving Animals From Extinction, and Beastly Brains: Exploring How Animals Think, Talk, and Feel. She lives in New York’s Hudson Valley. Visit her at nancycastaldo.com, on Twitter @NCastaldoAuthor, and on Instagram @naturespeak.

Learn more about this author