Her 1963 warnings about the effects of pesticides and herbicides sparked a revolution in environmental policy.
The story of the farmers who dreamed of prosperity and lived through ten years of drought, dust, disease and death.
Vivid memories of those trapped in the terrifying temblor of 1906 that killed thousands of Californians.
Before radar had been invented a devastating hurricane hit America, surprising residents of the East Coast and killing more than 600 people.
John Wesley Powell's epic journey into the unknown Grand Canyon was filled with adventure as his team mapped the Colorado River for the first time.
Robert Marshall, Aldo Leopold and Howard Zahniser dedicated their lives to protect the shrinking American wilderness.
The American effort to relieve starvation in Soviet Russia in 1921 during the worst natural disaster in Europe in 500 years.
Native Alaskans, oil company representatives, environmentalists, politicians, and others tell the story of the 800-mile pipeline.