This year at least six algae blooms were reported on the western arm of Lake Superior, according to the Wisconsin Department of Natural Resources. The blooms of cyanobacteria, also known as blue-green algae, are likely increasing in the lake due to warm surface water and ample sunlight. Read the full story by The Star Tribune.
Great Lakes Commission
https://www.glc.org/dailynews/20210924-algae-bloom