How many years of comparable data are there for IDA blend and Portugal?

54 years are reported by both, from 1970 to 2023.

Where does this data come from?

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

IDA blend vs Portugal: Methane (CH4) emissions from Industrial Combustion (Energy) (Mt)

IDA blend

0 Mt CO2e per square kilometre

in 2023

Portugal

0 Mt CO2e per square kilometre

in 2023

IDA blend rank

24th

Portugal rank

24th

Methane (CH4) emissions from Industrial Combustion (Energy) (Mt) over time

IDA blend
Portugal

How they compare

Portugal currently reports 0 Mt CO2e per square kilometre against 0 Mt CO2e per square kilometre in IDA blend, a difference of 0 Mt CO2e per square kilometre.

That makes Portugal's figure about 5.1 times IDA blend's.

Across all 54 years both countries report, Portugal has been ahead every year.

IDA blend ranks 24th and Portugal ranks 24th of 47 groups.

Portugal has averaged higher in every one of the 6 decades both report.

Head to head by decade

Decade	IDA blend	Portugal	Difference	Ahead
1970s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Portugal
1980s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Portugal
1990s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Portugal
2000s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Portugal
2010s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Portugal
2020s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Portugal

Averages of every year both report within each decade.

Frequently asked questions

Which has higher methane (ch4) emissions from industrial combustion (energy) (mt), IDA blend or Portugal?: Portugal, at 0 Mt CO2e per square kilometre against 0 Mt CO2e per square kilometre in IDA blend as of 2023.
What is the difference in methane (ch4) emissions from industrial combustion (energy) (mt) between IDA blend and Portugal?: 0 Mt CO2e per square kilometre, with Portugal ahead.
How many years of comparable data are there for IDA blend and Portugal?: 54 years are reported by both, from 1970 to 2023.
How do IDA blend and Portugal rank globally for methane (ch4) emissions from industrial combustion (energy) (mt)?: IDA blend ranks 24th and Portugal ranks 24th of 47 groups.
Where does this data come from?: Statizoid (derived), published as Methane (CH4) emissions from Industrial Combustion (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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IDA blend vs Portugal: Methane (CH4) emissions from Industrial Combustion (Energy) (Mt). Statizoid, drawing on Statizoid (derived). Retrieved 23 September 2026, from https://environment.statizoid.com/compare/methane-ch4-emissions-from-industrial-combustion-energy-mt-co2e-per-square-kilometre/ida-blend/portugal/

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<a href="https://environment.statizoid.com/compare/methane-ch4-emissions-from-industrial-combustion-energy-mt-co2e-per-square-kilometre/ida-blend/portugal/">IDA blend vs Portugal: Methane (CH4) emissions from Industrial Combustion (Energy) (Mt)</a> — Statizoid

About this data

Indicator: Methane (CH4) emissions from Industrial Combustion (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: 240 places, 12,327 data points, 1970–2023
Last refreshed: 22 September 2026

Methane (CH4) emissions from Industrial Combustion (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.