The document summarizes a study of household carbon dioxide emissions in the city of Golden Valley, Minnesota. It discusses trends in Minnesota's energy use and sources. It then describes a Twin Cities Household Ecosystem Project that studied household carbon, nitrogen, and phosphorus fluxes. The study found household energy use, transportation, waste, and other activities account for a large portion of urban pollution. Surveys of households in Falcon Heights, Minnesota were used as a pilot study. Results showed a three-fold variation in carbon consumption between households of similar size. The full study involved surveying 15,000 households to better understand demographic and behavioral factors that influence household resource use.