W1965 Valparaíso earthquake and the El Cobre dam failuresW2000 Baia Mare cyanide spillWAjka alumina plant accidentWBarcarena water contaminationWBrumadinho dam disasterWChurch Rock uranium mill spillW2015 Gold King Mine waste water spillWMariana dam disasterWMartin County coal slurry spillWMerriespruit tailings dam disasterWObed Mountain coal mine spillWOk Tedi environmental disasterWOmai Mine
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