The sustainability in Iowa’s water supply has many factors but similar results. Sustainability is an act in where humans and nature co-exist in harmony. In my research with Dr. Connerly we have summarized that in order to maintain that sustainability in Iowa’s water supply is necessary to take note of the increase in CAFO’s which secrete manure and urine, dead animals, and production operations on a small land area, dramatic climate change and also nutrient pollution from agriculture. These are some of the biggest problems in managing water sustainability in Iowa. This is due to the fact that corn is an enormously important crop due to its high productivity, and generating more biomass per acre than any other major crops such as wheat and soybeans. And Iowa is one of the leading states in corn production. With the increase in demand farmers are now using fertilizer to meet those demands. Ninety-seven percent of corn acres receive nitrogen fertilizers annually and seventy-eight receives phosphate. The increase in fertilizer use has tripled corn production but has led to excessive run-off and ground water pollution of rivers, streams, and lakes. The increased leaching of fertilizer is hazardous to the ecosystem as well as the water. Domestic water supply also poses risks to human health. Ingesting water with nitrogen in the form of nitrate can be especially harmful to infants and pregnant woman as well as being linked to thyroid problems in adults. Nutrient pollution from U. S. corn farming is the largest contributor to the Gulf of Mexico’s “dead zone”. There is no single solution but with increased awareness from companies as well as residents a change toward better water sustainability can be made. Recently in Iowa over past the past few summers there has been a significant increase in rainfall that leads to floods throughout the state. In order to combat these floods maintain agriculture sustainability we must build a more flood resistant area. In my research I have concluded that will also play a role in a more flood resistant environment. For example planting perennial plants help capture nitrogen run-off by using its extensive root systems which can hold soil to prevent run-off during floods. Furthermore buffer strips as well as perennials will make a more flood resistant habitat as well as decrease fertilization that goes into streams after heavy rains and floods. In addition, Dr. Connerly and I have also summarized that the best way to deal with climate change is only to use enough fertilizer that show crops may maintain during the drastic weather. Or farmers can diversify their crops so fertilizer may not be used year round.