Cedar Rapids Gazette: Iowa municipalities and local farmers now have a road map for teaming up to address water quality, under an agreement establishing the first use of the state’s Nutrient Reduction Exchange. The Dubuque City Council on Monday approved an agreement between the city and the Iowa Department of Natural Resources — negotiated by the agricultural conservation not-for-profit Sand County Foundation — that will let Dubuque meet certain state water quality requirements by working with area farmers.