The environmental debate: a documentary history

Foundations of American environmental thought and action

Politicians, naturalists, and artists in the new nation, 1776-1840

The origins of environmental activism, 1840-1890

The conservation movement era, 1890-1920

Rethinking our relationship to nature, 1920-1960

The heyday of the environmental movement, 1960-1980

Confronting economic and social realities, 1980-2000.