Global greenhouse gas emissions amounted to roughly 57 billion metric tons of carbon dioxide equivalent (GtCO₂e) in 2023. The power sector was the biggest global contributor to GHG emissions that year, with a share of 26 percent. The majority of emissions from electricity production come from coal-fired power plants. Transportation was the second-largest source of global GHG emissions in 2023, with road vehicles the biggest polluters.
Distribution of greenhouse gas emissions worldwide in 2023, by sector
Characteristic
Share of emissions
Power
26%
Transportation
15%
Industry
11%
Agriculture
11%
Fuel production
10%
Industrial processes
9%
LULUCF
7%
Buildings
6%
Waste & other
4%
• Power 26%
• Transportation 15%
• Industry 11%
• Agriculture 11%
• Fuel production 10%
• Industrial processes 9%
• LULUCF 7%
• Buildings 6%
• Waste & other 4%
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UNEP. (October 24, 2024). Distribution of greenhouse gas emissions worldwide in 2023, by sector [Graph]. In Statista. Retrieved May 09, 2025, from https://www.statista.com/statistics/241756/proportion-of-energy-in-global-greenhouse-gas-emissions/
UNEP. "Distribution of greenhouse gas emissions worldwide in 2023, by sector." Chart. October 24, 2024. Statista. Accessed May 09, 2025. https://www.statista.com/statistics/241756/proportion-of-energy-in-global-greenhouse-gas-emissions/
UNEP. (2024). Distribution of greenhouse gas emissions worldwide in 2023, by sector. Statista. Statista Inc.. Accessed: May 09, 2025. https://www.statista.com/statistics/241756/proportion-of-energy-in-global-greenhouse-gas-emissions/
UNEP. "Distribution of Greenhouse Gas Emissions Worldwide in 2023, by Sector." Statista, Statista Inc., 24 Oct 2024, https://www.statista.com/statistics/241756/proportion-of-energy-in-global-greenhouse-gas-emissions/
UNEP, Distribution of greenhouse gas emissions worldwide in 2023, by sector Statista, https://www.statista.com/statistics/241756/proportion-of-energy-in-global-greenhouse-gas-emissions/ (last visited May 09, 2025)
Distribution of greenhouse gas emissions worldwide in 2023, by sector [Graph], UNEP, October 24, 2024. [Online]. Available: https://www.statista.com/statistics/241756/proportion-of-energy-in-global-greenhouse-gas-emissions/
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