Mass Salt Marshes Are "Underrated Environmental Heroes"

The Great Marsh is the largest of its kind in New England, and expert Liz Duff explains why it's so important.
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Salt marsh in Massachusetts

"If we care about wildlife, we care about salt marshes," Liz Duff tells WBUR.

WBUR Boston recently spoke to Liz Duff, who has been studying the Great Marsh for 20 years, about why it's so important to the environment of the North Shore of Massachusetts—and why it's under threat.