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Blue-green algae blooms, once unheard of in Lake Superior, are a sign that ‘things are changing’ experts say

Milwaukee Journal Sentinel · Caitlin Looby · last updated

APOSTLE ISLANDS NATIONAL LAKESHORE — Brenda Moraska Lafrancois was on her way back to her office when she first heard reports of algae blooms near the sea caves along the Apostle Islands National Lakeshore on Lake Superior.