Portugal vs United States: Carbon dioxide (CO2) emissions from Transport (Energy) (Mt CO2e), per

Portugal
0.0002 Mt CO2e per square kilometre
in 2023
United States
0.0002 Mt CO2e per square kilometre
in 2023
Portugal rank
43rd
United States rank
44th

Carbon dioxide (CO2) emissions from Transport (Energy) (Mt CO2e), per over time

  • Portugal
  • United States
0000197019962023

How they compare

Portugal currently reports 0.0002 Mt CO2e per square kilometre against 0.0002 Mt CO2e per square kilometre in United States, a difference of 0 Mt CO2e per square kilometre.

The two have swapped places 3 times across 54 shared years of data; in 1970 it was United States ahead.

Portugal ranks 43rd and United States ranks 44th of 194 countries.

Across the 6 decades both report, Portugal averaged higher in 1 and United States in 5.

Head to head by decade

Decade Portugal United States Difference Ahead
1970s 0.0001 Mt CO2e per square kilometre 0.0001 Mt CO2e per square kilometre 0.0001 Mt CO2e per square kilometre United States
1980s 0.0001 Mt CO2e per square kilometre 0.0001 Mt CO2e per square kilometre 0.0001 Mt CO2e per square kilometre United States
1990s 0.0001 Mt CO2e per square kilometre 0.0002 Mt CO2e per square kilometre 0 Mt CO2e per square kilometre United States
2000s 0.0002 Mt CO2e per square kilometre 0.0002 Mt CO2e per square kilometre 0 Mt CO2e per square kilometre Portugal
2010s 0.0002 Mt CO2e per square kilometre 0.0002 Mt CO2e per square kilometre 0 Mt CO2e per square kilometre United States
2020s 0.0002 Mt CO2e per square kilometre 0.0002 Mt CO2e per square kilometre 0 Mt CO2e per square kilometre United States

Averages of every year both report within each decade.

Frequently asked questions

Which has higher carbon dioxide (co2) emissions from transport (energy) (mt co2e), per, Portugal or United States?
Portugal, at 0.0002 Mt CO2e per square kilometre against 0.0002 Mt CO2e per square kilometre in United States as of 2023.
What is the difference in carbon dioxide (co2) emissions from transport (energy) (mt co2e), per between Portugal and United States?
0 Mt CO2e per square kilometre, with Portugal ahead.
How many years of comparable data are there for Portugal and United States?
54 years are reported by both, from 1970 to 2023.
How do Portugal and United States rank globally for carbon dioxide (co2) emissions from transport (energy) (mt co2e), per?
Portugal ranks 43rd and United States ranks 44th of 194 countries.
Where does this data come from?
Statizoid (derived), published as Carbon dioxide (CO2) emissions from Transport (Energy) (Mt CO2e), per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Portugal vs United States: Carbon dioxide (CO2) emissions from Transport (Energy) (Mt CO2e), per. Statizoid, drawing on Statizoid (derived). Retrieved 23 September 2026, from https://environment.statizoid.com/compare/carbon-dioxide-co2-emissions-from-transport-energy-mt-co2e-per-square-kilometre/portugal/united-states/

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About this data

Indicator
Carbon dioxide (CO2) emissions from Transport (Energy) (Mt CO2e), per square kilometre
Unit
Mt CO2e per square kilometre
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
241 places, 12,381 data points, 1970–2023
Last refreshed

Carbon dioxide (CO2) emissions from Transport (Energy) (Mt CO2e) divided by Land area (sq. km), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.