Clean Water Act Fights Air Pollution

Public health officials say mercury is proving to be one of the most
troublesome pollutants. While mercury causes brain and reproductive
damage, it’s very difficult to capture and very difficult to clean up.
But in northern Minnesota, people are trying an innovative approach to
the mercury problem, and they’re using an obscure part of the clean
water act. The Great Lakes Radio Consortium’s Stephanie Hemphill
reports: