Environment

Five years after Mariana, Samarco strikes back

A joint venture between Vale and BHP, Samarco was responsible for one of the worst environmental disasters in Brazilian history

Samarco disaster
The 2015 Samarco disaster left long-lasting effects in the Rio Doce. Photo: Felipe Werneck/Ascom/Ibama

Five years ago, the city of Mariana in the southeastern state of Minas Gerais was the stage of one of the worst environmental disasters ever recorded in Brazil. After an iron ore tailings dam collapsed in the town — some 65 kilometers from state capital Belo Horizonte — the equivalent of 25,000 Olympic swimming pools of toxic sludge was spilled, destroying entire towns and resulting in 19 deaths. It also devastated the Rio Doce, one of the region’s most important waterways. Thousands of animals were killed and experts at the time reckoned that it would take decades to reverse...

Access all of The Brazilian Report
Start your 7-day free trial.
Free trial