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

55 years are reported by both, from 1970 to 2024.

Where does this data come from?

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

Denmark vs Ireland: Methane (CH4) emissions from Transport (Energy) (Mt CO2e), per unit

Denmark

0 Mt CO2e per US$ of GDP

in 2024

Ireland

0 Mt CO2e per US$ of GDP

in 2024

Denmark rank

189th

Ireland rank

191st

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

Denmark
Ireland

How they compare

Denmark currently reports 0 Mt CO2e per US$ of GDP against 0 Mt CO2e per US$ of GDP in Ireland, a difference of 0 Mt CO2e per US$ of GDP.

That makes Denmark's figure about 2.3 times Ireland's.

The two have swapped places 1 time across 55 shared years of data; in 1970 it was Ireland ahead.

Denmark ranks 189th and Ireland ranks 191st of 191 countries.

Across the 6 decades both report, Denmark averaged higher in 2 and Ireland in 4.

Head to head by decade

Decade	Denmark	Ireland	Difference	Ahead
1970s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Ireland
1980s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Ireland
1990s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Ireland
2000s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Ireland
2010s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Denmark
2020s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Denmark

Averages of every year both report within each decade.

Frequently asked questions

Which has higher methane (ch4) emissions from transport (energy) (mt co2e), per unit, Denmark or Ireland?: Denmark, at 0 Mt CO2e per US$ of GDP against 0 Mt CO2e per US$ of GDP in Ireland as of 2024.
What is the difference in methane (ch4) emissions from transport (energy) (mt co2e), per unit between Denmark and Ireland?: 0 Mt CO2e per US$ of GDP, with Denmark ahead.
How many years of comparable data are there for Denmark and Ireland?: 55 years are reported by both, from 1970 to 2024.
How do Denmark and Ireland rank globally for methane (ch4) emissions from transport (energy) (mt co2e), per unit?: Denmark ranks 189th and Ireland ranks 191st of 191 countries.
Where does this data come from?: Statizoid (derived), published as Methane (CH4) emissions from Transport (Energy) (Mt CO2e), per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Denmark vs Ireland: Methane (CH4) emissions from Transport (Energy) (Mt CO2e), per unit. Statizoid, drawing on Statizoid (derived). Retrieved 21 September 2026, from https://environment.statizoid.com/compare/methane-ch4-emissions-from-transport-energy-mt-co2e-per-unit-of-gdp/denmark/ireland/

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<a href="https://environment.statizoid.com/compare/methane-ch4-emissions-from-transport-energy-mt-co2e-per-unit-of-gdp/denmark/ireland/">Denmark vs Ireland: Methane (CH4) emissions from Transport (Energy) (Mt CO2e), per unit</a> — Statizoid

About this data

Indicator: Methane (CH4) emissions from Transport (Energy) (Mt CO2e), per unit of GDP
Unit: Mt CO2e per US$ of GDP
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 238 places, 12,139 data points, 1970–2024
Last refreshed: 21 September 2026

Methane (CH4) emissions from Transport (Energy) (Mt CO2e) divided by GDP (current US$), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.