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Reuters has created a series of data visualizations illustrating the number of tailings dams—which are embankments that store mining waste in liquid or solid form—by country. This is the type of dam that collapsed and led to the death of at least 240 people in Brazil in 2019. The visualizations show that more tailings dams have opened in the past ten years than any other decade. The visualizations also show that the list of nations with the most tailings dams includes Australia, Canada, Brazil, South Africa, and the United States.
