Her 1963 warnings about the effects of pesticides and herbicides - especially DDT - sparked a revolution in environmental policy and created a new ecological consciousness.
The most daring and innovative accomplishment at the turn of the 20th century.
Robert Marshall, Aldo Leopold and Howard Zahniser dedicated their lives to protect the shrinking American wilderness.
Today one of the most-recognized figures in American literary history, poet Walt Whitman was denounced by critics in his own time.
The inspiring story of the modern environmental movement.
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.
This stunning film portrait of Yosemite National Park uses the 1851 diary of the first expedition of soldiers into the Native American territory.
In 1927, the Mississippi River flooded from New Orleans to Illinois, leaving a million people homeless and leading to a major black migration to the North.