Paper mill wastes mixed with raw sewage caused a terrible stench every summer. Fish were killed near the power plants. By 1960, the Hudson River was a perfect example of a polluted river. Since then, millions of dollars have gone into cleaning up the river. Now there are federal laws that protect the river from the kinds of pollution that were destroying it.
Environmental groups work together to correct the pollution problems.
Industries have had to clean up their areas and change the way they get rid of waste. Return to The Ice House lesson .