Columbia subject headings:
Environmental sciences--Social aspects.
Environmentalism.
Nature--Effect of human beings on.
Harvard subject headings:
Environmental sciences--Philosophy
Environmental sciences--Social aspects
Environmentalism
Human beings--Effect of environment on--History.
Human ecology--History
Nature--Effect of human beings on
Nature--Effect of human beings on--History
Princeton subject headings:
Environmental sciences--Social aspects.
Environmentalism.
Nature--Effect of human beings on.