The Bamako Convention (in full - Bamako Convention on the ban on the Import into Africa and the Control of Transboundary Movement and Management of Hazardous Wastes within Africa) is enacted.
The Doñana disaster, an industrial accident in Andalusia (southern Spain), occurred when a holding dam burst at the Los Frailes mine near Aznalcóllar (Seville Province). It released 4–5 million cubic metres of mine tailings.