A Greenpeace activist hammers into the ground warning signs regarding the toxic waste stockpile located near the Sydney 2000 Olympic site at Homebush Bay, June 3. Greenpeace claim that the waste contains dangerous levels of dioxin, approximately 60 times higher than the contamination produced by the world's first major dioxin accident at Seveso, Italy in 1976. The new findings will be delivered by Greenpeace to the International Olympic Committee headquarters in Switzerland later today.