United States vs Portugal: CO2 comparison 2021

Key questions

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

United States produced more emissions than Portugal in 2021. United States produced 5032.21 million tonnes which is more than Portugal's emissions at 39.94 million tonnes.

Did Portugal emit more CO2 than United States in 2021?

No, Portugal emitted fewer emissions than United States.

Did United States emit more CO2 than Portugal in 2021?

Yes, United States emitted more emissions than Portugal.

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