happens in the US too, I had to do a report on a steel mill in southwest ohio (between dayton and cincinnati) where the pollution is so bad metal flakes constantly fall in the town around the mill. All their houses are smitted black due to the pollution and they have a high rate of lung cancer from the residents breathing that crap in. That's just one steel mill in america, add the rest of them up and you've got the reason for all these people dying of cancer. I don't even want to talk about what they do to the water....