LabWorker_GettyImages-498-17e23630f86fba613b4bd24d7c56ec52cc517352

A Chilean scientist works in a laboratory process called “bioleaching” -a procedure in which bacteria are used to recover ore from discarded scrap material- in Santiago, on November 4, 2015. Bioleaching, used to separate dispersed copper in rocks, is a friendlier solution regarding the environment and of lower cost for an industry hit by a fall in the price of this metal. AFP PHOTO/MARTIN BERNETTI / AFP / MARTIN BERNETTI (Photo credit should read MARTIN BERNETTI/AFP/Getty Images)

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