So far as the Saunterer knows, the first book ever on conservation ecology is George Perkins Marsh’s Man and Nature, published in 1864. David Lowenthal, editor of the 1965 Harvard University Press edition, writes in the preface:
Anyone wielding a hoe or an ax knows what he is doing, but before Marsh no one had assessed the cumulative effect of all axes and hoes.
How well have we learned to assess the cumulative effects of humans on nature, and of nature on humans, reciprocating on and on?
Near the end of Man and Nature, Marsh says and warns:
The human operations mentioned in the last few paragraphs do act in the ways ascribed to them, though our limited faculties are at present, perhaps forever, incapable of weighing their immediate, still more their ultimate consequences. But our inability to assign definite values to these causes of the disturbance of natural arrangements is not a reason for ignoring the existence of such causes in any general view of the relations between man and nature, and we are never justified in assuming a force to be insignificant because its measure is unknown, or even because no physical effect can now be traced to it as its origin.
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For a brief biography of George Perkins Marsh, click here.
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