Discrepancies and Uncertainties in Bottom-up Gridded Inventories of Livestock Methane Emissions for the Contiguous United States

Cynthia A Randles1, Alexander N. Hristov2, Michael Harper3, Robert Meinen4, Rick Day5, Juliana Lopes4, Troy Ott4 and Aranya Venkatesh1, (1)ExxonMobil Research and Engineering Company, Annandale, NJ, United States, (2)Pennsylvania State University, Animal Science, University Park, PA, United States, (3)The Pennsylvania State University, Department of Animal Science, University Park, PA, United States, (4)The Pennsylvania State University, Department of Animal Science, University Park, PA, United States, (5)The Pennsylvania State University, Department of Ecosystem Science and Management, University Park, PA, United States