An essential tool to teach kids about the importance of water! Did you know that when water appears in your home, it must disappear from somewhere else? And that freshwater supply has to be shared by 7.7 billion people on Earth? If people do not conserve freshwater, there will not be enough for everyone. The good news is that there are lots of ways you can help save water. Learn all about them in How You Can Save Water . ABOUT THE SERIES: Earth is known as the Blue Planet because of the abundant amount of water that covers our home. And nothing on Earth could survive without it. As we find ourselves facing a global water crisis, learning about this life-giving resource has never been more important. The books in this series are filled with colorful photos and diagrams, plus easy-to-digest text, and fascinating facts. And they offer young readers an in-depth look at what water is, how we use it, and most importantly, what we can do to protect it.