How many years of comparable data are there for Slovakia and Vietnam?

31 years are reported by both, from 1993 to 2023.

Where does this data come from?

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

Slovakia vs Vietnam: Methane (CH4) emissions from Waste (Mt CO2e), per square kilometre

Slovakia

0.0001 Mt CO2e per square kilometre

in 2023

Vietnam

0.0001 Mt CO2e per square kilometre

in 2023

Slovakia rank

39th

Vietnam rank

42nd

Methane (CH4) emissions from Waste (Mt CO2e), per square kilometre over time

Slovakia
Vietnam

How they compare

Slovakia currently reports 0.0001 Mt CO2e per square kilometre against 0.0001 Mt CO2e per square kilometre in Vietnam, a difference of 0 Mt CO2e per square kilometre.

Across all 31 years both countries report, Slovakia has been ahead every year.

Slovakia ranks 39th and Vietnam ranks 42nd of 203 countries.

Slovakia has averaged higher in every one of the 4 decades both report.

Head to head by decade

Decade	Slovakia	Vietnam	Difference	Ahead
1990s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Slovakia
2000s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Slovakia
2010s	0.0001 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Slovakia
2020s	0.0001 Mt CO2e per square kilometre	0.0001 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Slovakia

Averages of every year both report within each decade.

Frequently asked questions

Which has higher methane (ch4) emissions from waste (mt co2e), per square kilometre, Slovakia or Vietnam?: Slovakia, at 0.0001 Mt CO2e per square kilometre against 0.0001 Mt CO2e per square kilometre in Vietnam as of 2023.
What is the difference in methane (ch4) emissions from waste (mt co2e), per square kilometre between Slovakia and Vietnam?: 0 Mt CO2e per square kilometre, with Slovakia ahead.
How many years of comparable data are there for Slovakia and Vietnam?: 31 years are reported by both, from 1993 to 2023.
How do Slovakia and Vietnam rank globally for methane (ch4) emissions from waste (mt co2e), per square kilometre?: Slovakia ranks 39th and Vietnam ranks 42nd of 203 countries.
Where does this data come from?: Statizoid (derived), published as Methane (CH4) emissions from Waste (Mt CO2e), per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Slovakia vs Vietnam: Methane (CH4) emissions from Waste (Mt CO2e), per square kilometre. Statizoid, drawing on Statizoid (derived). Retrieved 21 September 2026, from https://environment.statizoid.com/compare/methane-ch4-emissions-from-waste-mt-co2e-per-square-kilometre/slovak-republic/viet-nam/

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<a href="https://environment.statizoid.com/compare/methane-ch4-emissions-from-waste-mt-co2e-per-square-kilometre/slovak-republic/viet-nam/">Slovakia vs Vietnam: Methane (CH4) emissions from Waste (Mt CO2e), per square kilometre</a> — Statizoid

About this data

Indicator: Methane (CH4) emissions from Waste (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: 21 September 2026

Methane (CH4) emissions from Waste (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.