Book excerpt: Humans have been polluting the seas for centuries. Who knows it better than one who calls the sea her home — the Little Mermaid! And she has had enough. Marina emerges on land and marches all the way to Parliament House to protest human pollution.All is well in the idyllic world of fairy tales, where there is always a happily ever after. However, the Little Mermaid finds herself swimming in trash, the Emperor runs into big problems with his wasteful ways, and other unusual things begin happening. Our beloved fairy tale characters help our young readers learn more about saving our Earth. Brought across in a fun and whimsical way, Once Upon a Green World: Fairy Tales with an Environmental Twist presents well-loved fairy tales, with an environmental emphasis that will tickle and entertain, while educating at the same time!