Nitrate Reducation

This story starts with a couple of 25 gallon fish tanks in a St. Olaf dorm room.  Growing up in Eau Claire, Wisconsin, Ian became interested in reducing fertilizer runoff when he learned that sources of pollution like nitrate and phosphorus were invisible as they leached into the groundwater or local streams. Parts of the watershed were overloaded with nutrient pollution whose negative impact increased as it moved downstream.