Brazil’s mining tragedy and the dangers of storing iron ore waste

The Samarco disaster: Brazilian President Dilma Rousseff flies over the Mariana region | Photo: Stuckert Filho

Brazil suffered one of the worst environmental tragedies in the country’s history. A mining dam located in Minas Gerais collapsed and spilled 196 million cubic feet (60 million cubic meters) of mud into rivers, communities, and the ocean.

The Samarco iron ore operation is a joint venture…

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