EARTH HEROES features the youth, careers and lasting contributions of some of the world's greatest naturalists and environmentalists. Each of the eight people portrayed in the book were significantly influenced by a childhood experience in nature. They grew up to be leaders who influenced the world - and each other.

Included in the book are:
* Henry David Thoreau, whose writings formed the basis for the environmental movement
* John Muir, the extraordinary naturalist who founded the Sierra Club
* Theodore Roosevelt, who engaged the American Government in conservation in the early 20th Century
* Aldo Leopold, instrumental in creating the worlds first wilderness preserve
* Richard St. Barbe Baker, who spearheaded the world's first major reforestation campaign
* Mardy Murie, who worked to preserve huge wilderness tracts in Alaska
* David Suzuki, eminent Canadian scientist and broadcaster
* Wangaari Maathai, a Kenyan woman who focused on the social impact of the environment