Global greenhouse gas emissions shares 2023, by sector

Published by Ian Tiseo, Jul 10, 2025

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

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Release date

2024

Region

Worldwide

Survey time period

2023

Special properties

Based on total emissions of 57.1 GtCO₂e. Figures may not sum 100% due to rounding.

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Statistics on " Transportation emissions worldwide "

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Other statistics that may interest you Transportation emissions worldwide

Outlook

7

Key emitters

5

Segments

7

Overview

6

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Topics

Greenhouse gas emissions worldwideMethane emissions worldwideGlobal climate changeOil and gas industry emissions worldwideGreenhouse gas emissions in the U.S.
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