Agriculture accounted for 10 percent of U.S. greenhouse gas emissions in 2017
Agriculture accounted for an estimated 10 percent of U.S. greenhouse gas (GHG) emissions in 2017. In agriculture, crop and livestock activities are important sources of nitrous oxide and methane emissions, notably from fertilizer application, enteric fermentation (a normal digestive process in animals that produces methane), and manure storage and management. GHG emissions from agriculture have increased by approximately 9 percent since 1990. Total U.S. GHG emissions in 2017 were 1.3 percent higher than they were in 1990.
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