22 million pounds of plastics enter the Great Lakes each year. Most of the pollution pours into Lake Michigan.
On a sunny August morning at 31st Street Beach, Tyrone Dobson assembled 20 volunteers to pick up litter from the shores of Lake Michigan.
At first glance, the effort seemed unwarranted. After all, the tire tracks from a Chicago Park District beach groomer were still fresh in what appeared to be pristine sand
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