Hong Kong, China vs Portugal: Nitrous oxide (N2O) emissions from Transport (Energy)
Nitrous oxide (N2O) emissions from Transport (Energy) over time
- Hong Kong, China
- Portugal
How they compare
Hong Kong, China currently reports 0.1578 Mt CO2e against 0.1544 Mt CO2e in Portugal, a difference of 0.0034 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 56th and Portugal ranks 59th of 194 countries.
Across the 6 decades both report, Hong Kong, China averaged higher in 2 and Portugal in 4.
Head to head by decade
| Decade | Hong Kong, China | Portugal | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 0.0197 Mt CO2e | 0.0623 Mt CO2e | 0.0427 Mt CO2e | Portugal |
| 1980s | 0.0573 Mt CO2e | 0.0778 Mt CO2e | 0.0205 Mt CO2e | Portugal |
| 1990s | 0.2271 Mt CO2e | 0.1398 Mt CO2e | 0.0873 Mt CO2e | Hong Kong, China |
| 2000s | 0.1125 Mt CO2e | 0.1756 Mt CO2e | 0.0631 Mt CO2e | Portugal |
| 2010s | 0.1052 Mt CO2e | 0.1498 Mt CO2e | 0.0445 Mt CO2e | Portugal |
| 2020s | 0.1493 Mt CO2e | 0.1462 Mt CO2e | 0.0031 Mt CO2e | Hong Kong, China |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher nitrous oxide (n2o) emissions from transport (energy), Hong Kong, China or Portugal?
- Hong Kong, China, at 0.1578 Mt CO2e against 0.1544 Mt CO2e in Portugal as of 2024.
- What is the difference in nitrous oxide (n2o) emissions from transport (energy) between Hong Kong, China and Portugal?
- 0.0034 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 nitrous oxide (n2o) emissions from transport (energy)?
- Hong Kong, China ranks 56th and Portugal ranks 59th 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 Nitrous oxide (N2O) 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 nitrous oxide (N2O), 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).