soil conservation

"What happens when all the worms are gone? One by one, a raccoon farmer gets rid of the worms in their field. When the field is finally clean, the farmer finds out something's wrong. No potatoes will grow! Something is wrong with the soil. Will the farmer ever fix the soil in the field? What will help the potatoes grow?"--Provided by publisher.

Featuring live action and animation, this movie examines the history and current state of the living organic matter that we come from and will later return to.

Explores the basic ideas at the foundation of American conservationist thought, focusing on the movement's roots during the first fifty years of the United States history.

Discusses the formation and the role of different types of soils and how they have been endangered through unwise farming, mining, and grazing.

Examines the problem of land degradation through erosion and deforestation, discussing how these processes occur and what effects they have.