China vs Hong Kong: Annual percentage change in CO₂ emissions
China
1.0%
in 2024
Hong Kong
1.1%
in 2024
China rank
140th
Hong Kong rank
137th
Annual percentage change in CO₂ emissions over time
- China
- Hong Kong
How they compare
Hong Kong currently reports 1.1% against 1.0% in China, a difference of 0.1%.
That makes Hong Kong's figure about 1.2 times China's.
The two have swapped places 35 times across 78 shared years of data; in 1939 it was China ahead.
China ranks 140th and Hong Kong ranks 137th of 215 countries.
Across the 10 decades both report, China averaged higher in 5 and Hong Kong in 5.
Head to head by decade
| Decade | China | Hong Kong | Difference | Ahead |
|---|---|---|---|---|
| 1930s | 21.3% | 0.0% | 21.3% | China |
| 1940s | 26.7% | 27.1% | 0.4% | Hong Kong |
| 1950s | 29.9% | 451.2% | 421.3% | Hong Kong |
| 1960s | -0.4% | 11.3% | 11.8% | Hong Kong |
| 1970s | 10.0% | 7.5% | 2.4% | China |
| 1980s | 5.0% | 6.7% | 1.7% | Hong Kong |
| 1990s | 3.8% | 4.1% | 0.3% | Hong Kong |
| 2000s | 8.4% | -0.1% | 8.5% | China |
| 2010s | 3.2% | 0.2% | 3.0% | China |
| 2020s | 2.8% | -4.0% | 6.8% | China |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher annual percentage change in co₂ emissions, China or Hong Kong?
- Hong Kong, at 1.1% against 1.0% in China as of 2024.
- What is the difference in annual percentage change in co₂ emissions between China and Hong Kong?
- 0.1%, with Hong Kong ahead.
- How many years of comparable data are there for China and Hong Kong?
- 78 years are reported by both, from 1939 to 2024.
- How do China and Hong Kong rank globally for annual percentage change in co₂ emissions?
- China ranks 140th and Hong Kong ranks 137th 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.