These photos were taken almost thirty years afterwards. So either their attempts to fix the rampant pollution was an abject failure or it was lipservice. Local

These photos were taken almost thirty years afterwards. So either their attempts to fix the rampant pollution was an abject failure or it was lipservice. Local governments are not immune to corruption either, especially when business incentives tend to have even stronger local ties. Plus, what if a city decides to be negligent and not fix the problem in the first place? What if that city's pollution starts crossing state lines? etc This isn't something that can just be outsourced to local governments especially when there's plenty of evidence that they failed to control the problem.