How many years of comparable data are there for Mongolia and Sierra Leone?

54 years are reported by both, from 1970 to 2023.

Where does this data come from?

Statizoid (derived), published as Carbon dioxide (CO2) emissions (total) excluding LULUCF (Mt CO2e), per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Mongolia vs Sierra Leone: Carbon dioxide (CO2) emissions (total) excluding LULUCF (Mt CO2e)

Mongolia

0 Mt CO2e per square kilometre

in 2023

Sierra Leone

0 Mt CO2e per square kilometre

in 2023

Mongolia rank

172nd

Sierra Leone rank

169th

Carbon dioxide (CO2) emissions (total) excluding LULUCF (Mt CO2e) over time

Mongolia
Sierra Leone

How they compare

Sierra Leone currently reports 0 Mt CO2e per square kilometre against 0 Mt CO2e per square kilometre in Mongolia, a difference of 0 Mt CO2e per square kilometre.

That makes Sierra Leone's figure about 1.1 times Mongolia's.

The two have swapped places 4 times across 54 shared years of data; in 1970 it was Sierra Leone ahead.

Mongolia ranks 172nd and Sierra Leone ranks 169th of 203 countries.

Sierra Leone has averaged higher in every one of the 6 decades both report.

Head to head by decade

Decade	Mongolia	Sierra Leone	Difference	Ahead
1970s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Sierra Leone
1980s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Sierra Leone
1990s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Sierra Leone
2000s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Sierra Leone
2010s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Sierra Leone
2020s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Sierra Leone

Averages of every year both report within each decade.

Frequently asked questions

Which has higher carbon dioxide (co2) emissions (total) excluding lulucf (mt co2e), Mongolia or Sierra Leone?: Sierra Leone, at 0 Mt CO2e per square kilometre against 0 Mt CO2e per square kilometre in Mongolia as of 2023.
What is the difference in carbon dioxide (co2) emissions (total) excluding lulucf (mt co2e) between Mongolia and Sierra Leone?: 0 Mt CO2e per square kilometre, with Sierra Leone ahead.
How many years of comparable data are there for Mongolia and Sierra Leone?: 54 years are reported by both, from 1970 to 2023.
How do Mongolia and Sierra Leone rank globally for carbon dioxide (co2) emissions (total) excluding lulucf (mt co2e)?: Mongolia ranks 172nd and Sierra Leone ranks 169th of 203 countries.
Where does this data come from?: Statizoid (derived), published as Carbon dioxide (CO2) emissions (total) excluding LULUCF (Mt CO2e), per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Mongolia vs Sierra Leone: Carbon dioxide (CO2) emissions (total) excluding LULUCF (Mt CO2e). Statizoid, drawing on Statizoid (derived). Retrieved 22 September 2026, from https://environment.statizoid.com/compare/carbon-dioxide-co2-emissions-total-excluding-lulucf-mt-co2e-per-square-kilometre/mongolia/sierra-leone/

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<a href="https://environment.statizoid.com/compare/carbon-dioxide-co2-emissions-total-excluding-lulucf-mt-co2e-per-square-kilometre/mongolia/sierra-leone/">Mongolia vs Sierra Leone: Carbon dioxide (CO2) emissions (total) excluding LULUCF (Mt CO2e)</a> — Statizoid

About this data

Indicator: Carbon dioxide (CO2) emissions (total) excluding LULUCF (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: 250 places, 12,804 data points, 1970–2023
Last refreshed: 20 September 2026

Carbon dioxide (CO2) emissions (total) excluding LULUCF (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.