United States vs Iran: CO2 comparison 2021

Key questions

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

United States produced more emissions than Iran in 2021. United States produced 5032.21 million tonnes which is more than Iran's emissions at 688.08 million tonnes.

Did Iran emit more CO2 than United States in 2021?

No, Iran emitted fewer emissions than United States.

Did United States emit more CO2 than Iran in 2021?

Yes, United States emitted more emissions than Iran.

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