How many years of comparable data are there for Italy 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 Waste (Mt CO2e), per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Italy vs Portugal: Methane (CH4) emissions from Waste (Mt CO2e), per square kilometre

Italy

0.0001 Mt CO2e per square kilometre

in 2023

Portugal

0.0001 Mt CO2e per square kilometre

in 2023

Italy rank

38th

Portugal rank

40th

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

Italy
Portugal

How they compare

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

The two have swapped places 2 times across 54 shared years of data; in 1970 it was Italy ahead.

Italy ranks 38th and Portugal ranks 40th of 203 countries.

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

Head to head by decade

Decade	Italy	Portugal	Difference	Ahead
1970s	0.0001 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Italy
1980s	0.0001 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Italy
1990s	0.0001 Mt CO2e per square kilometre	0.0001 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Italy
2000s	0.0001 Mt CO2e per square kilometre	0.0001 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Italy
2010s	0.0001 Mt CO2e per square kilometre	0.0001 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Italy
2020s	0.0001 Mt CO2e per square kilometre	0.0001 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Italy

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, Italy or Portugal?: Italy, at 0.0001 Mt CO2e per square kilometre against 0.0001 Mt CO2e per square kilometre in Portugal as of 2023.
What is the difference in methane (ch4) emissions from waste (mt co2e), per square kilometre between Italy and Portugal?: 0 Mt CO2e per square kilometre, with Italy ahead.
How many years of comparable data are there for Italy and Portugal?: 54 years are reported by both, from 1970 to 2023.
How do Italy and Portugal rank globally for methane (ch4) emissions from waste (mt co2e), per square kilometre?: Italy ranks 38th and Portugal ranks 40th 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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Italy vs Portugal: 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/italy/portugal/

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<a href="https://environment.statizoid.com/compare/methane-ch4-emissions-from-waste-mt-co2e-per-square-kilometre/italy/portugal/">Italy vs Portugal: 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.