How many years of comparable data are there for Slovenia and Tonga?

32 years are reported by both, from 1992 to 2023.

Where does this data come from?

Statizoid (derived), published as Methane (CH4) emissions from Transport (Energy) (Mt CO2e), per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Slovenia vs Tonga: Methane (CH4) emissions from Transport (Energy) (Mt CO2e), per square

Slovenia

0 Mt CO2e per square kilometre

in 2023

Tonga

0 Mt CO2e per square kilometre

in 2023

Slovenia rank

87th

Tonga rank

85th

Methane (CH4) emissions from Transport (Energy) (Mt CO2e), per square over time

Slovenia
Tonga

How they compare

Tonga currently reports 0 Mt CO2e per square kilometre against 0 Mt CO2e per square kilometre in Slovenia, a difference of 0 Mt CO2e per square kilometre.

The two have swapped places 3 times across 32 shared years of data; in 1992 it was Slovenia ahead.

Slovenia ranks 87th and Tonga ranks 85th of 194 countries.

Across the 4 decades both report, Slovenia averaged higher in 3 and Tonga in 1.

Head to head by decade

Decade	Slovenia	Tonga	Difference	Ahead
1990s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Slovenia
2000s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Slovenia
2010s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Slovenia
2020s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Tonga

Averages of every year both report within each decade.

Frequently asked questions

Which has higher methane (ch4) emissions from transport (energy) (mt co2e), per square, Slovenia or Tonga?: Tonga, at 0 Mt CO2e per square kilometre against 0 Mt CO2e per square kilometre in Slovenia as of 2023.
What is the difference in methane (ch4) emissions from transport (energy) (mt co2e), per square between Slovenia and Tonga?: 0 Mt CO2e per square kilometre, with Tonga ahead.
How many years of comparable data are there for Slovenia and Tonga?: 32 years are reported by both, from 1992 to 2023.
How do Slovenia and Tonga rank globally for methane (ch4) emissions from transport (energy) (mt co2e), per square?: Slovenia ranks 87th and Tonga ranks 85th of 194 countries.
Where does this data come from?: Statizoid (derived), published as Methane (CH4) emissions from Transport (Energy) (Mt CO2e), per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Individual pages

Share, cite or embed this page

Cite this page

Slovenia vs Tonga: Methane (CH4) emissions from Transport (Energy) (Mt CO2e), per square. Statizoid, drawing on Statizoid (derived). Retrieved 21 September 2026, from https://environment.statizoid.com/compare/methane-ch4-emissions-from-transport-energy-mt-co2e-per-square-kilometre/slovenia/tonga/

Embed or link this data

Paste this into a page to link back to these figures. The data itself is free to reuse under Derived by Statizoid from the sources named on the page; please keep the attribution.

<a href="https://environment.statizoid.com/compare/methane-ch4-emissions-from-transport-energy-mt-co2e-per-square-kilometre/slovenia/tonga/">Slovenia vs Tonga: Methane (CH4) emissions from Transport (Energy) (Mt CO2e), per square</a> — Statizoid

About this data

Indicator: Methane (CH4) 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: 21 September 2026

Methane (CH4) 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.