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

59 years are reported by both, from 1961 to 2019.

Where does this data come from?

Statizoid (derived), published as Emission Totals - Emissions (CO2eq) (AR5) - Enteric Fermentation, per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Tonga vs Viet Nam: Emission Totals - Emissions (CO2eq) (AR5) - Enteric Fermentation, per

Tonga

0.0423 units per square kilometre

in 2019

Viet Nam

0.0408 units per square kilometre

in 2019

Tonga rank

47th

Viet Nam rank

50th

Emission Totals - Emissions (CO2eq) (AR5) - Enteric Fermentation, per over time

Tonga
Viet Nam

How they compare

Tonga currently reports 0.0423 units per square kilometre against 0.0408 units per square kilometre in Viet Nam, a difference of 0.0015 units per square kilometre.

The two have swapped places 3 times across 59 shared years of data; in 1961 it was Viet Nam ahead.

Tonga ranks 47th and Viet Nam ranks 50th of 189 countries.

Across the 6 decades both report, Tonga averaged higher in 5 and Viet Nam in 1.

Head to head by decade

Decade	Tonga	Viet Nam	Difference	Ahead
1960s	0.0125 units per square kilometre	0.0194 units per square kilometre	0.0069 units per square kilometre	Viet Nam
1970s	0.0226 units per square kilometre	0.0183 units per square kilometre	0.0043 units per square kilometre	Tonga
1980s	0.0366 units per square kilometre	0.0236 units per square kilometre	0.013 units per square kilometre	Tonga
1990s	0.0361 units per square kilometre	0.0301 units per square kilometre	0.006 units per square kilometre	Tonga
2000s	0.0401 units per square kilometre	0.0396 units per square kilometre	0.0005 units per square kilometre	Tonga
2010s	0.0414 units per square kilometre	0.0395 units per square kilometre	0.0019 units per square kilometre	Tonga

Averages of every year both report within each decade.

Frequently asked questions

Which has higher emission totals - emissions (co2eq) (ar5) - enteric fermentation, per, Tonga or Viet Nam?: Tonga, at 0.0423 units per square kilometre against 0.0408 units per square kilometre in Viet Nam as of 2019.
What is the difference in emission totals - emissions (co2eq) (ar5) - enteric fermentation, per between Tonga and Viet Nam?: 0.0015 units per square kilometre, with Tonga ahead.
How many years of comparable data are there for Tonga and Viet Nam?: 59 years are reported by both, from 1961 to 2019.
How do Tonga and Viet Nam rank globally for emission totals - emissions (co2eq) (ar5) - enteric fermentation, per?: Tonga ranks 47th and Viet Nam ranks 50th of 189 countries.
Where does this data come from?: Statizoid (derived), published as Emission Totals - Emissions (CO2eq) (AR5) - Enteric Fermentation, per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Tonga vs Viet Nam: Emission Totals - Emissions (CO2eq) (AR5) - Enteric Fermentation, per. Statizoid, drawing on Statizoid (derived). Retrieved 02 September 2026, from https://reference.statizoid.com/compare/emission-totals-emissions-co2eq-ar5-enteric-fermentation-per-square-kilometre/tonga/viet-nam/

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About this data

Indicator: Emission Totals - Emissions (CO2eq) (AR5) - Enteric Fermentation, per square kilometre
Unit: units per square kilometre
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 189 places, 10,097 data points, 1961–2019
Last refreshed: 02 September 2026

Emission Totals - Emissions (CO2eq) (AR5) - Enteric Fermentation 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.