CO2 Emissions in 2023
A new record high, but is there light at the end of the tunnel?
About this report
CO2 Emissions in 2023 provides a complete picture of energy-related emissions in 2023. The report finds that clean energy growth has limited the rise in global emissions, with 2023 registering an increase of 1.1%. Weather effects and continued Covid-19 reopening played a significant role in driving emissions in 2023. Advanced economies saw a record decrease in their emissions, which are now back to the level of fifty years ago. This release brings together the IEA’s latest analysis, combining the Agency’s estimates of CO2 emissions from all energy sources and industrial processes.
This report is a companion piece to our Clean Energy Market Monitor, released in parallel.
Online table of contents
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1.0Executive Summary
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2.0Emissions grew in 2023, but clean energy is limiting the growth
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3.0Weather and continued Covid-19 reopening effects played an important role in the emissions increase
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4.0Emissions in advanced economies fell to their level of 50 years ago
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5.0Energy-intensive economic growth, compounded by unfavourable weather, pushed emissions up in China and India
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6.0Coal demand in emerging market and developing economies was the biggest driver in global emissions growth
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7.0The changing landscape of global emissions