An organization representing victims of asbestos exposure was appalled after last year’s conviction in an Italian court of a Swiss billionaire accused of creating an environmental disaster that led to thousands of people dying from asbestos-related illnesses.

The organization was so angry it hired a Connecticut lawyer to turn urge Yale University to rescind an honorary degree the Ivy League school had given to the billionaire, Stephan Schmidheiny, in 1996. After more than two months, Yale finally responded to the request—and it didn’t offer the answer the group wanted to hear.