How many years of comparable data are there for Ireland and New Caledonia?

54 years are reported by both, from 1970 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.

Ireland vs New Caledonia: Methane (CH4) emissions from Transport (Energy) (Mt CO2e), per square

Ireland

0 Mt CO2e per square kilometre

in 2023

New Caledonia

0 Mt CO2e per square kilometre

in 2023

Ireland rank

118th

New Caledonia rank

115th

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

Ireland
New Caledonia

How they compare

New Caledonia currently reports 0 Mt CO2e per square kilometre against 0 Mt CO2e per square kilometre in Ireland, a difference of 0 Mt CO2e per square kilometre.

That makes New Caledonia's figure about 1.1 times Ireland's.

The two have swapped places 1 time across 54 shared years of data; in 1970 it was Ireland ahead.

Ireland ranks 118th and New Caledonia ranks 115th of 194 countries.

Across the 6 decades both report, Ireland averaged higher in 5 and New Caledonia in 1.

Head to head by decade

Decade	Ireland	New Caledonia	Difference	Ahead
1970s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Ireland
1980s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Ireland
1990s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Ireland
2000s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Ireland
2010s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Ireland
2020s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	New Caledonia

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, Ireland or New Caledonia?: New Caledonia, at 0 Mt CO2e per square kilometre against 0 Mt CO2e per square kilometre in Ireland as of 2023.
What is the difference in methane (ch4) emissions from transport (energy) (mt co2e), per square between Ireland and New Caledonia?: 0 Mt CO2e per square kilometre, with New Caledonia ahead.
How many years of comparable data are there for Ireland and New Caledonia?: 54 years are reported by both, from 1970 to 2023.
How do Ireland and New Caledonia rank globally for methane (ch4) emissions from transport (energy) (mt co2e), per square?: Ireland ranks 118th and New Caledonia ranks 115th 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.

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Ireland vs New Caledonia: 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/ireland/new-caledonia/

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<a href="https://environment.statizoid.com/compare/methane-ch4-emissions-from-transport-energy-mt-co2e-per-square-kilometre/ireland/new-caledonia/">Ireland vs New Caledonia: 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.