Hong Kong vs Romania: Annual percentage change in CO₂ emissions
Hong Kong
1.1%
in 2024
Romania
1.0%
in 2024
Hong Kong rank
137th
Romania rank
138th
Annual percentage change in CO₂ emissions over time
- Hong Kong
- Romania
How they compare
Hong Kong currently reports 1.1% against 1.0% in Romania, a difference of 0.1%.
That makes Hong Kong's figure about 1.1 times Romania's.
The two have swapped places 34 times across 78 shared years of data; in 1939 it was Hong Kong ahead.
Hong Kong ranks 137th and Romania ranks 138th of 215 countries.
Across the 10 decades both report, Hong Kong averaged higher in 8 and Romania in 2.
Head to head by decade
| Decade | Hong Kong | Romania | Difference | Ahead |
|---|---|---|---|---|
| 1930s | 0.0% | -5.7% | 5.7% | Hong Kong |
| 1940s | 27.1% | 20.9% | 6.2% | Hong Kong |
| 1950s | 451.2% | 8.6% | 442.6% | Hong Kong |
| 1960s | 11.3% | 8.3% | 3.1% | Hong Kong |
| 1970s | 7.5% | 5.8% | 1.7% | Hong Kong |
| 1980s | 6.7% | 0.9% | 5.8% | Hong Kong |
| 1990s | 4.1% | -8.1% | 12.2% | Hong Kong |
| 2000s | -0.1% | 0.1% | 0.2% | Romania |
| 2010s | 0.2% | -1.2% | 1.4% | Hong Kong |
| 2020s | -4.0% | -2.1% | 1.9% | Romania |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher annual percentage change in co₂ emissions, Hong Kong or Romania?
- Hong Kong, at 1.1% against 1.0% in Romania as of 2024.
- What is the difference in annual percentage change in co₂ emissions between Hong Kong and Romania?
- 0.1%, with Hong Kong ahead.
- How many years of comparable data are there for Hong Kong and Romania?
- 78 years are reported by both, from 1939 to 2024.
- How do Hong Kong and Romania rank globally for annual percentage change in co₂ emissions?
- Hong Kong ranks 137th and Romania ranks 138th of 215 countries.
- Where does this data come from?
- Global Carbon Budget (2025) – with major processing by Our World in Data, published as Annual percentage change in CO₂ emissions. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Annual percentage growth in total emissions of carbon dioxide (CO₂), excluding land-use change.