When a cloud of deadly gas containing TCDD -- a type of dioxin and a known cancer-causing agent -- was released over the town of Seveso, Italy, in 1976, it was one of the worst industrial accidents in postwar Europe.
Oddly, the Seveso disaster also helped to create a framework for environmental safety throughout the continent, and the town and its residents became a living laboratory for dioxin research. Find out how this small Italian town survived and grew in the years following the accident.

Comments