A giant algae bloom is still making the waters in the western part of Lake Erie look like a thick, green pea soup. Toxins in that muck seeped into the water supply of Toledo, Ohio, last weekend, forcing officials to ban nearly half a million people from using tap water. A big cause of the algae proliferation isn't a mystery — it's crop runoff. And local farmers are on the defensive.
Six miles from Lake Erie is Ron Schimming's 400-acre soybean and corn farm.