There appears to be a great divergence of opinion on this issue .
"Globally, economic copper resources are being depleted with the equivalent production of three world-class copper mines being consumed annually.[2] Environmental analyst Lester Brown has suggested copper might run out within 25 years based on what he considered a reasonable extrapolation of 2% growth per year.[7]
New copper discoveries[edit]
56 new copper discoveries have been made during the past three decades[clarify].[2] World discoveries of copper peaked in 1996
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