If global iron ore production remained flat at the 2012 level of 2.5 billion tonnes, how long would the measured reserves of 150 billion tonnes last?

Answer

60 years

Dividing the 150 billion tonne reserve estimate by the 2.5 billion tonne annual production rate from 2012 yields a supply lifespan of approximately 60 years.

If global iron ore production remained flat at the 2012 level of 2.5 billion tonnes, how long would the measured reserves of 150 billion tonnes last?
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