Key Milestone in the Environmental Movement

In the aftermath of World War II, the United States experienced significant changes in environmental awareness and activism. The environmental movement gained momentum during the latter half of the 20th century as a response to increased industrialization, urbanization, and concerns about pollution and natural resource depletion. Key moments and publications, such as the release of Rachel Carson's 'Silent Spring' in 1962, highlighted the dangers of pesticides and the need for greater ecological awareness.

By the 1970s, these growing concerns led to influential policy changes and the establishment of numerous environmental organizations. Which of the following events best represents a major milestone in the American environmental movement during the 1970s?