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Thursday, April 17, 2014, 1:55 a.m.

Mining firms tap renewable energy

The four windmills dug into northern Canada’s tundra that power Rio Tinto’s $5.2 billion Diavik diamond mine are the world’s first designed to work in gusts as cold as 40 degrees below zero.

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Photographs by BARRICK GOLD / Bloomberg News

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  • Headline: Mining firms tap renewable energy
  • Publication: Business, Pages 21 on 12/10/2012
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