Tushman, Michael L., Wendy Smith, and Daniel Radov. "Agrochemicals at Ciba-Geigy AG (B)." Harvard Business School Case 400-023, December 1999. (Revised January 2000.) ...

Ciba has spent about $200 million on trying to repair the damage since 1983, when the site was listed among the top 100 most polluted areas in the United States.