TOPSHOT - Aerial view of a tailings dam -enbankment used to store byproducts of mining operations, in this case of the extraction of copper- of the Minera Valle Central mining company, in Rancagua, Chile on May 31, 2019. - The other side of the coin of the mining industry in Chile is the existance of hundreds of tailings dams -enbankments of byproducts of the extraction of copper, the country's main export product- which mark the territory like silent witnesses of man's action on nature. (Photo by Martin BERNETTI / AFP)