United Kingdom vs United States: CO2 comparison 2021

Key questions

Who produced more CO2 emissions in 2021, United Kingdom or United States?

United States produced more emissions than United Kingdom in 2021. United States produced 5032.21 million tonnes which is more than United Kingdom's emissions at 347.47 million tonnes.

Did United Kingdom emit more CO2 than United States in 2021?

No, United Kingdom emitted fewer emissions than United States.

Did United States emit more CO2 than United Kingdom in 2021?

Yes, United States emitted more emissions than United Kingdom.

See how United States and United Kingdom compare to other countries in our rankings.