CO2 Emissions in the United Kingdom decreased to 292420 KT in 2024 from 304790 KT in 2023. CO2 Emissions in the United Kingdom averaged 542415.75 KT from 1960 until 2024, reaching an all time high of 660863.07 KT in 1971 and a record low of 292420.00 KT in 2024.