The toxic blue-green algae blooms on Lake of the Woods are a human-created problem.
And that it's going to take another few decades for the lake to flush itself of the toxins and nutrients that are causing the blooms.
How do we know this, you ask?
So glad you asked!
More information about the Lake of the Woods project is here.
And there are a couple of videos about paleolimnology produced by Elizabeth Alexson here and here.
