I’m often asked about our consumption of natural resources, e.g., oil, iron, and copper. Since these resources are finite and population continues to grow, aren’t we in danger of running out? My short answer is no, we’ll never run out of anything that trades in the marketplace. But, we should be concerned about running out of “resources” that have no price and no owner, e.g., wild things and the ecosystems upon which they depend. Here’s why I’m concerned about the one and not the other.

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