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Lake Erie's toxic algae blooms: Why is the water turning green?
Lake Erie in October 2011, during an intense bloom of blue-green algae, or cyanobacteria.
Credit: NASA
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Blue-green algae bloom in the summer of 2009 near Catawaba Island in Lake Erie.
Credit: NASA
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Even the waves are green. An algae bloom in Lake Erie, as seen on July 22, 2011.
Credit: NOAA
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Soil and fertilizer runoff from a farm after heavy rains; such runoff can lead to algae blooms.
Credit: USDA
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A buoy deployed by the Center for Fresh Waters and Human Health to track water quality in real-time.
Credit: Great Lakes Center for Fresh Waters and Human Health
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View of Toledo in September 2017, showing an algae bloom where Lake Erie meets the Maumee River.
Credit: Center for Fresh Waters and Human Health
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