About two years ago, I looked through a BHP Billiton presentation which listed the number of years remaining for particular commodities. It was not an analysis of “peak” commodities as such, just a report on when various commodities would be completely, 100% depleted based on current usage rates and reserve assumptions. Copper in that report was determined to be scarcer than oil! [What does that mean for the future well-being of the U.S. - and the world?]

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