Dairy cattle manure can release harmful greenhouse gases like methane and carbon dioxide. A study looked at emissions from cow manure at different ages and storage methods. They found that younger cows produce more methane and carbon dioxide than older cows. Also, solid manure emits more gases than liquid manure. This is because there is more organic matter in solid manure and younger cows produce more of it. These findings can help improve how manure is managed on farms.