In January 2019, a dam holding back mining sludge at the Córrego do Feijão iron ore mine in Brumadinho, southeastern Brazil, collapsed. Around 10 million cubic meters (2.6 billion gallons) of the liquefied waste, or tailings, burst out of the dam, flattening nearby settlements, destroying a railway bridge, sending a surge of toxic mud into […]
The need to store and manage mine tailings the waste created by grinding up and processing ore is modern mining’s greatest environmental liability and long-term expense.
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