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Rio Tinto chases greener identity in Australia and China

Mining giant's projects seek to cut emissions in carbon-heavy industries

A ship at a Rio Tinto aluminum refinery in northern Australia: The mining titan is working to cut carbon emissions in its extraction and processing operations.   © Reuters

SYDNEY -- Rio Tinto is digging for ways to curb greenhouse gas emissions across mining and smelting operations ranging from Australia and the U.S. to China, the company's largest market.

The mining titan will spend about $750 million to expand iron ore operations in northwestern Australia's Pilbara region. Plans announced Wednesday include a 13 km conveyor belt from the mining pits to a processing facility, which will cut greenhouse gas emissions by 3.5% compared with moving the material by truck.

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