Nancy Castaldo is the author of several nonfiction books for children, including The Wolves and Moose of Isle Royale and Sniffer Dogs: How Dogs (and Their Noses) Save the World. She lives in New York's Hudson Valley. nancycastaldo.com
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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 th... SEE MORE