The complex interaction of agriculture and environment has been an issue since the beginning of man. Humans grow food to eat and also hunt animals that depend on natural resources for healthy ongoing habitats. Therefore, the world's human population must balance farming activities with maintaining natural resources. The term agriculture originally meant the act of cultivating fields or growing crops. However, it has expanded to include raising livestock as well.

When early settlers began farming and ranching in the United States, they faced pristine wilderness and open prairies. There was little cause for concern about protecting the environment or population and for two centuries, the country's land and water were aggressively used to create a healthy supply of ample food for Americans. In fact, many American families settled in rural areas and made a living as farmers and ranchers, passing the family business down...