In a blog post, Seth Jaffe examines the Environmental Protection Agency’s approach to regulating perfluoroalkyl and polyfluoroalkyl (PFAS) in water. He observes that a number of states believe that the EPA is moving too slowly in regulating these substances and writes that “federalism doesn’t really work if all it means is that the federal government punts on difficult issues and simply pushes the costs of environmental regulations onto the states.” Read more here.