With their father jailed for sinking a floating casino, Noah Underwood and his younger sister must gather evidence that the casino's owner is illegally flushing raw sewage into the protected waters around their Florida Keys home.

"Describes the history and traditions of Earth Day, including a craft and recipe"--

"Emma, Lily, and Fadila want to save the planet . . . and no one around them seems to care. Frustrated, they call themselves the Green Girls, take to social media, and launch a series of bold protests"--