Saudi Arabia's Sources of CO2 Emissions
Key Insights
2024 CO2 Emissions Profile
Saudi Arabia's 2024 CO2 emissions totalled around 692 megatonnes CO2e. Oil was dominant at roughly 451 megatonnes CO2, or 65.3%, followed by gas at about 206 megatonnes CO2, or 29.8%. Other fossil sources contributed around 34 megatonnes CO2 (4.9%), while coal was 0.7 megatonnes CO2 (0.1%) and land-use absorbed 0.4 megatonnes CO2. Over the ten years to 2024, oil, coal and other fossil emissions increased, while gas declined slightly and land-use became less negative.
Historic Coal Emissions
Coal emissions were negligible from the 1930s through 2007, despite a small high of about 0.08 megatonnes CO2 in 1998. They then rose steadily from roughly 0.06 megatonnes CO2 in 2007 to a peak of around 0.7 megatonnes CO2 in 2024.
Historic Oil Emissions
Oil emissions began near zero in the 1930s, with early fluctuations including about 38 megatonnes CO2 in 1947. They rose strongly from around 21 megatonnes CO2 in 1973 to nearly 200 by 1994, fell in the late 1990s, then climbed to a 2024 peak of roughly 451 megatonnes CO2.
Historic Gas Emissions
Gas emissions remained small until the late 1970s, reaching around 1.2 megatonnes CO2 in 1977. They then expanded to nearly 235 megatonnes CO2 by 2020 and peaked at about 242 in 2021. Gas emissions subsequently declined, ending at around 206 megatonnes CO2 in 2024.
Historic Land-use Emissions
Land-use emissions began as a small net absorption, around -1.4 megatonnes CO2 in 1851, before becoming net emissions by the mid-1970s. They peaked at roughly 3.9 megatonnes CO2 in 1983, then fell back into net absorption, reaching about -0.4 megatonnes CO2 in 2024.
Historic Other Fossil Emissions
Other fossil emissions were near zero until the 1960s, then rose sharply to a peak of around 76 megatonnes CO2 in 1974. They fell to roughly 10 megatonnes CO2 by 1985, before gradually recovering. Emissions ended at around 34 megatonnes CO2 in 2024.
Background
The chart shows a national breakdown by source of the yearly CO2 emissions from human activities and processes expressed in megatonnes. It is critical to know and track the sources of national CO2 emissions in order to understand their individual impacts on climate change.
The sources of human CO2 emissions are
- CO2 From Fossil Fuels and Industry: coal, oil, gas combustion, other fossil processes
- CO2 From Land-Use, Land-Use Change, and Forestry
Coal, oil and gas combustion
Fossil fuel CO2 emissions from the combustion of coal, oil and gas are emitted by processes in electricity generation, transport, industry, and the building sector. All processes can be linked to human activities. Examples include driving cars with combustion engines burning diesel or gas, or electric cars charged by electricity from a power plant that burns coal.
Other fossil processes
Fossil CO2 emissions from other processes include sources like cement manufacturing and production of chemicals and fertilizers. Cement also has an absorption factor highlighted in the absorption breakdown chart.
Land-use change
Human civilization emits CO2 by changing and managing its land. Those emissions come, for example, from deforestation, logging, forest degradation, harvest activities and shifting agriculture cultivation. Land-use change also absorbs considerable amounts of CO2, which is shown in the absorption breakdown chart. Land-use change emits more than it absorbs, so the net effect is still emissions, but less than for coal, oil and gas.
Wikipedia: Greenhouse Gas EmissionsEarth System Science Data: GCP 2020 paper: Section 2.2 Land-use change; Section 2.1 Fossil fuel emissions
IPCC: Annual Report 6, 5.2.1.1 Anthropogenic CO2 emissions
Units and Measures
CO2 emissions are expressed in the total weight in megatonnes per year. 1 Megatonne is equal to 1 million tonnes.
Wikipedia: MegatonneWikipedia: Global warming potential
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National CO2 emissions data through 2024 is from the Global Carbon Project and covers fossil sources and land-use change.
The Key Insights paragraph was created using a large language model (LLM) in combination with our data, historic events, and a structured approach for best accuracy by separating the context generation from the interpretation and narrative.
Data Sources
Global Carbon Budget 2025 Global Carbon Budget
Update cycle: yearlyDelay: ~ 10 months after the end of the year. Current year values are estimated and published in November.Credits: Friedlingstein, P., O'Sullivan, M., Jones, M. W., Andrew, R. M., Bakker, D. C. E., Hauck, J., Landschützer, P., Le Quéré, C., Li, H., Luijkx, I. T., Peters, G. P., Peters, W., Pongratz, J., Schwingshackl, C., Sitch, S., Canadell, J. G., Ciais, P., Aas, K., Alin, S. R., Anthoni, P., Barbero, L., Bates, N. R., Bellouin, N., Benoit-Cattin, A., Berghoff, C. F., Bernardello, R., Bopp, L., Brasika, I. B. M., Chamberlain, M. A., Chandra, N., Chevallier, F., Chini, L. P., Collier, N. O., Colligan, T. H., Cronin, M., Djeutchouang, L., Dou, X., Enright, M. P., Enyo, K., Erb, M., Evans, W., Feely, R. A., Feng, L., Ford, D. J., Foster, A., Fransner, F., Gasser, T., Gehlen, M., Gkritzalis, T., Goncalves De Souza, J., Grassi, G., Gregor, L., Gruber, N., Guenet, B., Gürses, Ö., Harrington, K., Harris, I., Heinke, J., Hurtt, G. C., Iida, Y., Ilyina, T., Ito, A., Jacobson, A. R., Jain, A. K., Jarníková, T., Jersild, A., Jiang, F., Jones, S. D., Kato, E., Keeling, R. F., Klein Goldewijk, K., Knauer, J., Kong, Y., Korsbakken, J. I., Koven, C., Kunimitsu, T., Lan, X., Liu, J., Liu, Z., Liu, Z., Lo Monaco, C., Ma, L., Marland, G., McGuire, P. C., McKinley, G. A., Melton, J., Monacci, N., Monier, E., Morgan, E. J., Munro, D. R., Müller, J. D., Nakaoka, S.-I., Nayagam, L. R., Niwa, Y., Nutzel, T., Olsen, A., Omar, A. M., Pan, N., Pandey, S., Pierrot, D., Qin, Z., Regnier, P. A. G., Rehder, G., Resplandy, L., Roobaert, A., Rosan, T. M., Rödenbeck, C., Schwinger, J., Skjelvan, I., Smallman, T. L., Spada, V., Sreeush, M. G., Sun, Q., Sutton, A. J., Sweeney, C., Swingedouw, D., Séférian, R., Takao, S., Tatebe, H., Tian, H., Tian, X., Tilbrook, B., Tsujino, H., Tubiello, F., van Ooijen, E., van der Werf, G., van de Velde, S. J., Walker, A., Wanninkhof, R., Yang, X., Yuan, W., Yue, X., and Zeng, J.: Global Carbon Budget 2025, Earth Syst. Sci. Data Discuss. [preprint], https://doi.org/10.5194/essd-2025-659, in review, 2025.