On the 20th anniversary of the Bhopal industrial disaster, Greenpeace, Amnesty International and the labour union Unia, deliver an exact replica of the memorial statue that stands outside the Union Carbide site in Bhopal - "mother with two children" to the DOW European Headquarters near Zurich. The 1984 chemical explosion at Union Carbide in Bhopal, India killed and maimed thousands. Dow bought Union Carbide in 2001, but will not accept any responsibility for the clean up of the contaminated site.