title: Livestock methane emissions in the United States.
authors.affiliation: Department of Animal Science, Pennsylvania State University, University Park, PA 16802.
authors.forename: Alexander N
authors.initials: AN
authors.lastname: Hristov
authors.forename: Kristen A
authors.initials: KA
authors.lastname: Johnson
authors.forename: Ermias
authors.initials: E
authors.lastname: Kebreab
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution / Q000706:statistics & numerical data*; D001272:Atmosphere / Q000032:analysis*; D004784:Environmental Monitoring / Q000706:statistics & numerical data*; D008697:Methane / Q000032:analysis*
chemical_list: D000393:Air Pollutants; D008697:Methane