What was the Aznalcollar mine disaster? How the infamous 1998 meltdown near Sevilla remains the worst ever ecological ...
In the early morning of April 25th, 1998, near the Sevillan town of Aznalcollar, a wastewater holding pond at the Los Frailes mine blew a 50-metre-wide breach, sending some six million cubic metres of toxic mud and water rushing into the Agrio River. The …