CO2 Emissions in the United States increased to 4853780 KT in 2022 from 4768870 KT in 2021. CO2 Emissions in the United States averaged 4875900.18 KT from 1960 until 2022, reaching an all time high of 6135287.21 KT in 2007 and a record low of 2880505.51 KT in 1961.