What can watershed science teach us about designing more effective phosphorus policy? In this episode of the PhosForUs Policy Series, host Barira Rashid sits down with her PhD advisor, Dr. Rebecca Muenich, whose research connects watershed modeling, nutrient management, water quality, animal agriculture, and phosphorus sustainability. They discuss what policymakers may overlook when phosphorus is managed one farm, permit, or practice at a time; how legacy phosphorus complicates expectations for water-quality improvement; and why better monitoring is essential for informed decision-making. The conversation also explores Barira’s research using remote sensing and artificial intelligence to identify and monitor animal feeding operations. What began as a geospatial research problem has developed into broader questions about manure phosphorus, environmental data gaps, watershed impacts, agricultural sustainability, and policy. Together, Barira and Becca consider how improved AFO information could support phosphorus management, whether policy has kept pace with phosphorus recovery and circularity, and what researchers can contribute to decisions beyond academia. FEATURED RESEARCH AND FURTHER READING Gaps in U.S. Livestock Data Are a Barrier to Effective Environmental and Disease ManagementRebecca Muenich, Barira Rashid, and colleagueshttps://doi.org/10.1088/1748-9326/adb050 Machine Learning-Based Identification of Animal Feeding Operations in the United States on a Parcel ScaleArghajeet Saha, Barira Rashid, and colleagueshttps://doi.org/10.1016/j.scitotenv.2024.178312 The Spatial Organization of CAFOs and Its Relationship to Water Quality in the United Stateshttps://doi.org/10.1016/j.jhydrol.2022.128301 Effective Nutrient Management of Surface Waters in the United States Requires Expanded Water-Quality Monitoring in Agriculturally Intensive Areashttps://doi.org/10.1021/acsenvironau.4c00060 Unlocking the Phosphorus Circularity Potential of Corn Belt Watersheds with Biorefinery Phosphorus-Recovery Incentiveshttps://doi.org/10.1016/j.jenvman.2024.124010 Closing the Phosphorus Loop: A Spatial Analysis of the Potential for Wastewater-Derived Fertilizers to Meet U.S. Agricultural Demandhttps://doi.org/10.1016/j.scitotenv.2025.180851 Topics discussed: phosphorus policy, phosphorus management, nutrient management, watershed modeling, water quality, animal feeding operations, manure phosphorus, agricultural sustainability, remote sensing, artificial intelligence, phosphorus circularity, nutrient recovery
