Japan vs United States: CO2 comparison 2021

Key questions

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

United States produced more emissions than Japan in 2021. United States produced 5032.21 million tonnes which is more than Japan's emissions at 1062.13 million tonnes.

Did Japan emit more CO2 than United States in 2021?

No, Japan emitted fewer emissions than United States.

Did United States emit more CO2 than Japan in 2021?

Yes, United States emitted more emissions than Japan.

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