Life on Earth- The Summer of Dioxin, also known as Tracing the Gray Summer, is a 2001 Japanese anime drama film directed by Satoshi Dezaki. An adaptation of the 1998 book by Kei Hasumi published by Iwasaki Publishing, the film recounts the true story of the Seveso disaster, a chemical incident occurred over the Italian town of Seveso in 1976, which is still considered one of the worst ecological disasters in history.