Algae bloom photos from Minnesota


Algae blooms on rural lakes—some of which are toxic to humans and wildlife&mash;increase along with fertilizer and manure pond runoff from farms. Minnesotan Mary Taffe took this ironically beautiful image of algae on Big Stone Lake. You can see more of her photos in a Treehugger gallery.


  1. Wow. I have family from Big Stone and have fished Big Stone Lake since I was a kid. These algae blooms are becoming more intense in many of Minnesota’s lakes with some of the strange weather patterns in recent years. Some lakes literally turn to pea soup and it takes quite a toll on all the species that rely on the water quality.

    Nevertheless,these photos are lovely.

  2. I lived with this witches brew for the last few years at our beloved cabin on Big Stone Lake. The overflow from the commercial dairy farms, as can be seen from aerial shots on line, and other polutants will probably make it even more toxic this year because of the spring flooding. The lake looks clear now but I dread thinking of what is lurking in there. I won’t let my dog swim in there and I certainly wouldn’t want to fall out of the boat, especially in about two weeks when the bloom begins. We couldn’t stay last year because even the air smelled toxic.
    The park ranger said they test the water regularly, and it isn’t the toxic algae. To my knowledge, the beaches have never been closed. Who is taking care of our lake?

    What can I do to help?

Comments are closed.