Water is vital to life. Farmers, ranchers, city residents, industry, recreationalists, livestock and wildlife all depend on Nebraska's most precious resource. Nebraska was a national leader in planting trees during the Dust Bowl Era of the 1930's. Arbor Day, an international holiday was born here. Nebraska's Natural Resources are the greatest sources of the state's wealth and its assurance for future prosperity. Even though most of Nebraska's residents live in cities or towns, they are never far removed from the state's Natural Resources. From the Sandhills and the loess hills to the Pine Ridge and the hardwood savannahs, Nebraska's grazing lands blanket over half the state. Educating our youth about the wonders of their natural resources and reason to conserve them may be as important an activity as any carried out by Nebraska's Natural Resource Districts. Nebraska's NRDs are nationally known for their innovative and effective environmental education programs.