Brazilian authorities arrested eight employees of mining giant Vale on Friday over a dam collapse at one of its mines three weeks ago that killed at least 166 people and left 147 missing, presumed ...

The collapse of a massive tailings dam in Brazil was caused by the accumulation of water and lack of drainage, although the facilities did not previously show signs of instability, according to a ...

RIO DE JANEIRO/BRASILIA/SAO PAULO (Reuters) - Faced with public outrage after its second mining dam collapse in four years killed at least 240 people in Brazil, Vale SA misrepresented what it had done ...

Researchers found that mining waste from the 2015 Mariana dam disaster persists in soil and water, entering local crops — indicating ongoing contamination. Stacey Leasca is an award-winning journalist ...

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BRASILIA (Reuters) - Brazil's mining secretary said on Friday he expects the sector's main regulator to extend its investigation until January 2020 into the causes of the Vale SA mining dam collapse ...

A B.C. Supreme Court judge has dismissed an attempt by the owners of the Mount Polley mine and its engineering consultants to cut the number of federal charges it faces over the catastrophic collapse ...