Higher rates of cancer, most notably a 42% higher rate of kidney cancer in the Merrimack River valley as a direct cause of Saint Gobain polluting the drinking water with PFAS. Even after it was first discovered in 2016, the company wasn't even required to provide safe drinking water until 2018. This is a decade and a half after the situation with Dupont, so the company had known they were poisoning people for 15 years and did absolutely nothing about it. I'd classify that as pretty fucking terrible.