Hong Kong, China vs Portugal: Methane (CH4) emissions from Transport (Energy)
Methane (CH4) emissions from Transport (Energy) over time
- Hong Kong, China
- Portugal
How they compare
Hong Kong, China currently reports 0.0254 Mt CO2e against 0.0253 Mt CO2e in Portugal, a difference of 0.0001 Mt CO2e.
The two have swapped places 5 times across 55 shared years of data; in 1970 it was Portugal ahead.
Hong Kong, China ranks 83rd and Portugal ranks 84th of 194 countries.
Across the 6 decades both report, Hong Kong, China averaged higher in 1 and Portugal in 5.
Head to head by decade
| Decade | Hong Kong, China | Portugal | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 0.0076 Mt CO2e | 0.0396 Mt CO2e | 0.0321 Mt CO2e | Portugal |
| 1980s | 0.0168 Mt CO2e | 0.0558 Mt CO2e | 0.039 Mt CO2e | Portugal |
| 1990s | 0.0391 Mt CO2e | 0.0847 Mt CO2e | 0.0456 Mt CO2e | Portugal |
| 2000s | 0.0421 Mt CO2e | 0.0569 Mt CO2e | 0.0148 Mt CO2e | Portugal |
| 2010s | 0.0279 Mt CO2e | 0.0274 Mt CO2e | 0.0005 Mt CO2e | Hong Kong, China |
| 2020s | 0.0226 Mt CO2e | 0.0241 Mt CO2e | 0.0015 Mt CO2e | Portugal |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher methane (ch4) emissions from transport (energy), Hong Kong, China or Portugal?
- Hong Kong, China, at 0.0254 Mt CO2e against 0.0253 Mt CO2e in Portugal as of 2024.
- What is the difference in methane (ch4) emissions from transport (energy) between Hong Kong, China and Portugal?
- 0.0001 Mt CO2e, with Hong Kong, China ahead.
- How many years of comparable data are there for Hong Kong, China and Portugal?
- 55 years are reported by both, from 1970 to 2024.
- How do Hong Kong, China and Portugal rank globally for methane (ch4) emissions from transport (energy)?
- Hong Kong, China ranks 83rd and Portugal ranks 84th of 194 countries.
- Where does this data come from?
- EDGAR (Emissions Database for Global Atmospheric Research) Community GHG Database, Joint Research Centre (JRC) - European Commission, published as Methane (CH4) emissions from Transport (Energy) (Mt CO2e). Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
A measure of annual emissions of methane (CH4), one of the six Kyoto greenhouse gases (GHG), from the transportation sector (subsector of the energy sector) including IPCC 2006 codes 1.A.3.a Civil Aviation, 1.A.3.b_noRES Road Transportation no resuspension, 1.A.3.c Railways, 1.A.3.d Water-borne Navigation, 1.A.3.e Other Transportation. The measure is standardized to carbon dioxide equivalent values using the Global Warming Potential (GWP) factors of IPCC's 5th Assessment Report (AR5).