title: Dietary changes reduce environmental impact of cows and sheep.
mesh_terms: D000821:Animal Feed; D000818:Animals; D002417:Cattle / Q000378:metabolism; D004032:Diet / Q000009:adverse effects; D004063:Digestion; D004777:Environment; D017752:Greenhouse Effect / Q000517:prevention & control*; D008697:Methane / Q000378:metabolism; D012756:Sheep / Q000378:metabolism
chemical_list: D008697:Methane