Key Takeaways
- In 2022, China's CO2 emissions totaled 11.9 GtCO2, 32% of global total
- United States emitted 5.0 GtCO2 in 2022, 13.5% of world total, down 0.8% from 2021
- India's CO2 emissions reached 2.9 GtCO2 in 2023, 8% of global, up 4.7% year-on-year
- Power sector in China emitted 6.7 GtCO2 in 2023, 46% of national total
- Global transport sector CO2 emissions totaled 8.0 GtCO2 in 2022, 21% of total, dominated by road vehicles
- Industry sector worldwide emitted 12.0 GtCO2 in 2022, 33% global share, iron/steel leading
- Global CO2 projected to peak before 2030 at 37-40 Gt under current policies
- Net zero by 2050 requires 7.6 Gt/yr CO2 cuts by 2030, 6%/yr decline
- China emissions to plateau 2025 at 12 Gt, decline post-2030
- Global CO2 emissions from fossil fuels and cement production reached 37.4 GtCO2 in 2023, marking a new record high driven by increased coal use in Asia
- Total anthropogenic CO2 emissions worldwide amounted to 36.8 GtCO2 in 2022, with fossil fuel combustion accounting for 86% of the total
- In 2021, global CO2 emissions rebounded to 36.3 GtCO2 post-COVID, 4.8% higher than 2020 levels but still 3.7% below 2019 peaks
- Global CO2 emissions grew from 15 Gt in 1950 to 37 Gt in 2023, tripling in 70 years
- Pre-industrial CO2 concentration 280 ppm, rose to 419 ppm by 2023, +50%
- US CO2 peaked at 6.0 Gt in 2007, fell 20% to 4.8 Gt by 2022
In 2022 China dominated global CO2 with 11.9 Gt, while power and transport drove worldwide emissions.
Related reading
Emissions by Country
Emissions by Country Interpretation
More related reading
Emissions by Sector
Emissions by Sector Interpretation
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Future Projections
Future Projections Interpretation
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Global Total Emissions
Global Total Emissions Interpretation
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Historical Trends
Historical Trends Interpretation
How We Rate Confidence
Every statistic is queried across four AI models (ChatGPT, Claude, Gemini, Perplexity). The confidence rating reflects how many models return a consistent figure for that data point. Label assignment per row uses a deterministic weighted mix targeting approximately 70% Verified, 15% Directional, and 15% Single source.
Only one AI model returns this statistic from its training data. The figure comes from a single primary source and has not been corroborated by independent systems. Use with caution; cross-reference before citing.
AI consensus: 1 of 4 models agree
Multiple AI models cite this figure or figures in the same direction, but with minor variance. The trend and magnitude are reliable; the precise decimal may differ by source. Suitable for directional analysis.
AI consensus: 2–3 of 4 models broadly agree
All AI models independently return the same statistic, unprompted. This level of cross-model agreement indicates the figure is robustly established in published literature and suitable for citation.
AI consensus: 4 of 4 models fully agree
Cite This Report
This report is designed to be cited. We maintain stable URLs and versioned verification dates. Copy the format appropriate for your publication below.
Henrik Dahl. (2026, February 13). Co2 Emissions Statistics. Gitnux. https://gitnux.org/co2-emissions-statistics
Henrik Dahl. "Co2 Emissions Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/co2-emissions-statistics.
Henrik Dahl. 2026. "Co2 Emissions Statistics." Gitnux. https://gitnux.org/co2-emissions-statistics.
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