When the Mariana dam burst in 2015 it created Brazil’s worst environmental disaster. The dam had been holding back mining waste so when it burst, a huge wave of toxic liquid burst down a river valley, killing 19 people.
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When the Mariana dam burst in 2015 it created Brazil’s worst environmental disaster. The dam had been holding back mining waste so when it burst, a huge wave of toxic liquid burst down a river valley, killing 19 people.