Fossil CO2 emissions in the World was 38,598.6 million tonnes of CO2 in 2024, according to Global Carbon Project. That is up 1.3% from 2023.
2024, million tonnes of CO238,598.6
Change on 2023+1.3%
Series high38,598.62024
Series low196.81850
Next release: Thursday, 22 October 2026, estimated by Invokely from past publication dates (low confidence), not announced by the publisher. Release calendar
Carbon dioxide emitted from fossil sources in the year, in million tonnes of CO2, as estimated by the Global Carbon Project for the Global Carbon Budget.
More on how it is measured
Fossil CO2 covers the burning of coal, oil and gas, gas flaring, cement production and other industrial carbonate use.
Emissions are counted in the country where they occur (territorial emissions).
International aviation and shipping are left out of country figures and included in the World total.
Land use change is not included.
Higher than energy_co2_emissions (EIA), which counts CO2 from energy use only, and lower than greenhouse gas totals, which add methane, nitrous oxide and fluorinated gases. Each annual Global Carbon Budget release revises past years.
Andrew, R. M. and Peters, G. P., The Global Carbon Project's fossil CO2 emissions dataset, Global Carbon Budget (Friedlingstein et al.). Global Carbon Project fossil CO2 emissions dataset: total fossil CO2 emissions, million tonnes of CO2. https://zenodo.org/records/17417124. Retrieved 2026-10-12. Licensed under CC BY 4.0.
Citation styles
The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.
APA 7
Global Carbon Project. (2025). Global Carbon Project fossil CO2 emissions dataset: total fossil CO2 emissions, million tonnes of CO2 (Fossil CO2 emissions, World, 1850 to 2024) [Data set]. Retrieved October 12, 2026, from https://zenodo.org/records/17417124
MLA 9
Global Carbon Project fossil CO2 emissions dataset: total fossil CO2 emissions, million tonnes of CO2, Fossil CO2 emissions, World, 1850 to 2024. Global Carbon Project, 22 Oct. 2025, https://zenodo.org/records/17417124. Invokely, https://invokely.ai/en/fossil-co2-emissions/world. Accessed 12 Oct. 2026.
Chicago (author-date)
Global Carbon Project. 2025. Global Carbon Project fossil CO2 emissions dataset: total fossil CO2 emissions, million tonnes of CO2. Fossil CO2 emissions, World, 1850 to 2024. Dataset. Accessed October 12, 2026. https://zenodo.org/records/17417124. Also distributed by Invokely, https://invokely.ai/en/fossil-co2-emissions/world.
Harvard
Global Carbon Project (2025) Global Carbon Project fossil CO2 emissions dataset: total fossil CO2 emissions, million tonnes of CO2, Fossil CO2 emissions, World, 1850 to 2024 [Dataset]. Available at: https://zenodo.org/records/17417124, via Invokely: https://invokely.ai/en/fossil-co2-emissions/world (Accessed: 12 October 2026).
BibTeX
@misc{global_fossil_co2_emissions_world_2024,
author = {{Global Carbon Project}},
title = {{Global Carbon Project fossil CO2 emissions dataset: total fossil CO2 emissions, million tonnes of CO2: Fossil CO2 emissions, World, 1850 to 2024}},
year = {2025},
howpublished = {Data set},
url = {https://zenodo.org/records/17417124},
urldate = {2026-10-12},
note = {Accessed via Invokely, https://invokely.ai/en/fossil-co2-emissions/world. Publisher attribution: Andrew, R. M. and Peters, G. P., The Global Carbon Project's fossil CO2 emissions dataset, Global Carbon Budget (Friedlingstein et al.). Global Carbon Project fossil CO2 emissions dataset: total fossil CO2 emissions, million tonnes of CO2. https://zenodo.org/records/17417124. Retrieved 2026-10-12. Licensed under CC BY 4.0.},
}
RIS
TY - DATA
AU - Global Carbon Project
TI - Global Carbon Project fossil CO2 emissions dataset: total fossil CO2 emissions, million tonnes of CO2: Fossil CO2 emissions, World, 1850 to 2024
PY - 2025
DA - 2025/10/22
PB - Global Carbon Project
DB - Invokely
UR - https://zenodo.org/records/17417124
L2 - https://invokely.ai/en/fossil-co2-emissions/world
Y2 - 2026/10/12
N1 - Accessed via Invokely, https://invokely.ai/en/fossil-co2-emissions/world.
N1 - Publisher attribution: Andrew, R. M. and Peters, G. P., The Global Carbon Project's fossil CO2 emissions dataset, Global Carbon Budget (Friedlingstein et al.). Global Carbon Project fossil CO2 emissions dataset: total fossil CO2 emissions, million tonnes of CO2. https://zenodo.org/records/17417124. Retrieved 2026-10-12. Licensed under CC BY 4.0.
ER -
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Fossil CO2 emissions in the World was 38,598.6 million tonnes of CO2 in 2024, according to Global Carbon Project. That is up 1.3% from 2023.
Where does this figure come from?
Global Carbon Project. Global Carbon Project fossil CO2 emissions dataset: total fossil CO2 emissions, million tonnes of CO2. Retrieved by Invokely on 2026-10-12.
What was the highest fossil CO2 emissions in World?
38,598.6 million tonnes of CO2 in 2024, the highest value since 1850 in this series.