On Lake Superior, a $1 billion eco-disaster is swallowing the coast
Stamp sand, a pulverized rock leftover from ore processing, has been dumped in Michigan’s Keweenaw Peninsula for more than 100 years. Transforming miles of shoreline, the stamp sand is now a slow-moving ecological disaster. Read the full story by MLive.
Great Lakes Commission
https://www.glc.org/dailynews/20220617-stamp-sand