Share of global greenhouse gas emissions in United States
United States: Share of global greenhouse gas emissions was 11.1% in 2024. ▼ Falling
Share of global greenhouse gas emissions in United States, 1850–2024
Source: Jones et al. (2025) – with major processing by Our World in Data. Measured in %.
Analysis
The most recent figure for share of global greenhouse gas emissions in United States is 11.1%, measured in 2024. That is the lowest value across all 175 years on record.
Compared with earlier readings it is down 1.0% on the previous year and down 12.4% over ten years.
Over the whole period, share of global greenhouse gas emissions in United States peaked at 30.6% in 1918 and was at its lowest, 11.1%, in 2024.
United States ranks 2nd of 199 countries on this measure, in the top 10%.
The long-run direction has been consistently falling across the 175 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1850s | 19.9% | 18.0% | 21.4% | 10 |
| 1860s | 19.7% | 18.9% | 21.0% | 10 |
| 1870s | 26.0% | 22.5% | 28.5% | 10 |
| 1880s | 25.7% | 25.1% | 26.6% | 10 |
| 1890s | 26.1% | 25.6% | 26.9% | 10 |
| 1900s | 26.5% | 25.9% | 27.5% | 10 |
| 1910s | 28.2% | 27.2% | 30.6% | 10 |
| 1920s | 27.2% | 26.1% | 29.1% | 10 |
| 1930s | 21.1% | 19.2% | 24.3% | 10 |
| 1940s | 23.5% | 21.0% | 25.5% | 10 |
| 1950s | 19.2% | 16.9% | 22.0% | 10 |
| 1960s | 19.0% | 17.1% | 21.7% | 10 |
| 1970s | 19.3% | 18.7% | 20.1% | 10 |
| 1980s | 17.2% | 16.2% | 18.2% | 10 |
| 1990s | 17.1% | 16.6% | 17.5% | 10 |
| 2000s | 16.1% | 13.8% | 17.7% | 10 |
| 2010s | 12.6% | 12.1% | 13.8% | 10 |
| 2020s | 11.4% | 11.1% | 11.6% | 5 |
Countries ranked near United States
More climate change data for United States
- Share of global CO₂ emissions and population 4.1% (2100)
- Population growth 0.5% (2025)
- Population, total 341.79 million (2025)
- Urban population growth 0.6% (2025)
- Urban population 274.08 million (2025)
- Urban population 80.2% (2025)
- CO₂ emissions per capita vs. GDP per capita 14.2 tonnes per person (2024)
- Cumulative CO₂ emissions 434.87 billion tonnes (2024)
- CO₂ emissions per capita 14.2 tonnes per person (2024)
- CO₂ emissions per capita vs. share of electricity generation from renewables 14.2 tonnes per person (2024)
Frequently asked questions
- What is share of global greenhouse gas emissions in United States?
- Share of global greenhouse gas emissions in United States was 11.1% in 2024, according to Jones et al. (2025) – with major processing by Our World in Data.
- What is the highest share of global greenhouse gas emissions recorded in United States?
- The highest recorded value was 30.6% in 1918.
- What is the lowest share of global greenhouse gas emissions recorded in United States?
- The lowest recorded value was 11.1% in 2024.
- How does United States rank for share of global greenhouse gas emissions?
- United States ranks 2nd out of 199 countries with data for 2024.
- Is share of global greenhouse gas emissions rising or falling in United States?
- Over the last ten years it is down 12.4%. The long-run trend across the full record is falling.
- Where does this United States data come from?
- The figures come from Jones et al. (2025) – with major processing by Our World in Data, published as part of Share of global greenhouse gas emissions. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 175 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Measured as a percentage of the world's greenhouse gas emissions.