Roosevelt was ahead of his time.

The Nation behaves well if it treats the natural resources as assets which it much turn over to the next generation increased and not impaired in value; and behaves badly if it leaves the land poorer to those who come after it. That is what I mean by the phrase, conservation of natural resources. Use them; but use them so that as far as possible our children will be richer, and not poorer because we have lived.

- Theodore Roosevelt
The New Nationalism 52 (1910)

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