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The Aznalcóllar mining disaster in 1998 caused the discharge of six million cubic metres of toxic sludge. (Greenpeace / Daniel Beltrá)Greenpeace/Daniel Beltrá
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The toxic spill occurred near the Coto Donana national park and impacted almost 5,000 hectares in southern Spain. (Greenpeace / Daniel Beltrá)Greenpeace/Daniel Beltrá
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A nickel mine in Indonesia. French firm Eramet has faced allegations of wrongdoing at its projects in the country.Shutterstock