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History
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Stegner c. 1969
Stegner c. 1969
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Environmentalism on United States stamps
Environmentalism on United States stamps
Levels of air pollution rose during the Industrial Revolution, sparking the first modern environmental laws to be passed in the mid-19th century.
Levels of air pollution rose during the Industrial Revolution, sparking the first modern environmental laws to be passed in the mid-19th century.
John Ruskin, an influential thinker who articulated the Romantic ideal of environmental protection and conservation
John Ruskin, an influential thinker who articulated the Romantic ideal of environmental protection and conservation
Original title page of Walden by Henry David Thoreau
Original title page of Walden by Henry David Thoreau