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Agriculture’s role in climate change: Greenhouse gas emissions

Agriculture accounted for about 8 percent of U.S. greenhouse gas (GHG) emissions in 2011. Given that agricultural production accounts for only about 1 percent of U.S. gross domestic product, it is a disproportionately GHG-intensive activity. In agriculture, crop and livestock activities are unique sources of nitrous oxide and methane emissions, notably from soil nutrient management, enteric fermentation (a normal digestive process in animals that produces methane), and manure management. GHG emissions from agriculture have increased by approximately 19 percent since 1990.

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Last updated: Monday, September 16, 2013

For more information contact: Kathleen Kassel

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