Cameroon's Yearly Greenhouse Gas Emissions in CO₂ Equivalent

✨ Key Insights

Colonial Era and Land Use Changes

Cameroon's greenhouse gas emissions history is deeply intertwined with its colonial past. The German colonization in 1884 and subsequent League of Nations mandate in 1922 led to significant land-use changes, primarily through deforestation for plantation agriculture. These activities likely contributed to increased CO₂ emissions from land-use changes, as forests were cleared for crops like cocoa and rubber. The impact of these early agricultural expansions is evident in the rising CO₂ emissions from land-use changes during these periods.

Post-Independence Economic Growth

Following independence in 1960, Cameroon experienced economic expansion, which included urbanization and infrastructure development. This period saw a notable increase in CO₂ emissions from fossil fuels, driven by the growth of urban areas and transportation networks. The discovery of oil reserves in 1977 further accelerated fossil fuel emissions, as the energy sector expanded. Methane emissions also likely rose due to increased agricultural activities, including livestock and rice cultivation.

Recent Developments and Mitigation Efforts

In recent years, Cameroon has taken steps to address its greenhouse gas emissions. The completion of the Chad-Cameroon pipeline in 2000 and the expansion of palm oil plantations contributed to increased emissions. However, initiatives like the national reforestation program launched in 2019 and ongoing hydropower development projects aim to mitigate emissions by enhancing carbon sequestration and reducing reliance on fossil fuels. The COVID-19 pandemic in 2020 temporarily reduced emissions due to decreased economic activity, highlighting the potential for sustainable practices to impact emission trends positively.

Background

Greenhouse gas emissions from human activities are the main drivers of human-induced warming. In the scientific literature, human-induced emissions are often referred to as anthropogenic emissions.

CO₂ Fossil Fuels and Industry (CO₂ FFI)
CO₂ Land-Use, Land-Use Change and Forestry (CO₂ LULUCF)
Methane (CH₄)
Moderate: above 2.5 tonnes
Nitrous oxide (N₂O)
Fluorinated gases (F-gases)

Emissions from all different gases are expressed in CO₂-equivalent units to make it possible to compare the relative emissions from these different gases. CO₂-equivalents are calculated using the global warming potentials of the respective gases, in this case using a 100-year time horizon.

Wikipedia: Global Warming Potential

Total Historic Share

CO₂ From Fossil Fuels and Industry

The sources are mostly fossil-fuel combustion emissions from coal, oil, and gas, as well as emissions from industrial processes such as cement production. Cement also absorbs CO₂ out of the atmosphere through carbonation, which reduces emissions by about 0.8 Gt per year and is included here.

CO₂ From Land-Use, Land-Use Change, and Forestry

The main driver of these emissions is deforestation, which includes logging and forest degradation, as well as other land-use change activities. The emissions also take into account the absorption of CO₂ by processes that remove CO₂ from the atmosphere, such as afforestation and reforestation. It is the net effect that is indicated here.

Methane (CH₄)

Methane emissions are caused by human activities such as rearing livestock, agricultural practices, and fugitive fossil fuel emissions.

Nitrous Oxide (N₂O)

Common sources of these emissions are fossil fuel emissions and the agricultural use of synthetic fertilizer and manure.

Fluorinated Gases (F-gases)

Fluorinated gases are a group of gases defined by UNFCCC: hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), sulfur hexafluoride (SF6), and nitrogen trifluoride (NF3). Fluorinated gases are also known as halogenated gases.

Wikipedia: Greenhouse Gas Emissions
IPCC: Annual Report 6, 5.2.1 5.2 Historical Trends, Variability and Budgets of CO₂, CH₄ and N₂O

Units and Measures

CO₂-equivalent emissions are expressed in the total weight in megatonnes per year. 1 Megatonne is equal to 1 million tonnes.

Wikipedia: Megatonne
Wikipedia: Global warming potential

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About the Data

The last available year in all the emission datasets is 2023. CO₂ emissions data is from the Global Carbon Project. It contains national CO₂ emissions from fossil sources and land-use change. Emissions from CH₄, N₂O and F-gases come from the PRIMAP-Hist dataset. It is a rich dataset that combines several published sources to create a historical emissions time series for various greenhouse gases.

The Key Insights paragraph was generated using a large language model (LLM) using a structured approach to improve the accuracy. This included separating the context generation from the interpretation and narrative.

Data Sources

Global Carbon Budget 2024 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 et al., 2024, ESSD. Friedlingstein, P., O'Sullivan, M., Jones, M. W., Andrew, R. M., Hauck, J., Landschützer, P., Le Quéré, C., Li, H., Luijkx, I. T., Olsen, A., Peters, G. P., Peters, W., Pongratz, J., Schwingshackl, C., Sitch, S., Canadell, J. G., Ciais, P., Jackson, R. B., Alin, S. R., Arneth, A., Arora, V., Bates, N. R., Becker, M., Bellouin, N., Berghoff, C. F., Bittig, H. C., Bopp, L., Cadule, P., Campbell, K., Chamberlain, M. A., Chandra, N., Chevallier, F., Chini, L. P., Colligan, T., Decayeux, J., Djeutchouang, L., Dou, X., Duran Rojas, C., Enyo, K., Evans, W., Fay, A., Feely, R. A., Ford, D. J., Foster, A., Gasser, T., Gehlen, M., Gkritzalis, T., Grassi, G., Gregor, L., Gruber, N., Gürses, Ö., Harris, I., Hefner, M., Heinke, J., Hurtt, G. C., Iida, Y., Ilyina, T., Jacobson, A. R., Jain, A., Jarníková, T., Jersild, A., Jiang, F., Jin, Z., Kato, E., Keeling, R. F., Klein Goldewijk, K., Knauer, J., Korsbakken, J. I., Lauvset, S. K., Lefèvre, N., Liu, Z., Liu, J., Ma, L., Maksyutov, S., Marland, G., Mayot, N., McGuire, P., Metzl, N., Monacci, N. M., Morgan, E. J., Nakaoka, S.-I., Neill, C., Niwa, Y., Nützel, T., Olivier, L., Ono, T., Palmer, P. I., Pierrot, D., Qin, Z., Resplandy, L., Roobaert, A., Rosan, T. M., Rödenbeck, C., Schwinger, J., Smallman, T. L., Smith, S., Sospedra-Alfonso, R., Steinhoff, T., Sun, Q., Sutton, A. J., Séférian, R., Takao, S., Tatebe, H., Tian, H., Tilbrook, B., Torres, O., Tourigny, E., Tsujino, H., Tubiello, F., van der Werf, G., Wanninkhof, R., Wang, X., Yang, D., Yang, X., Yu, Z., Yuan, W., Yue, X., Zaehle, S., Zeng, N., and Zeng, J.: Global Carbon Budget 2024, Earth Syst. Sci. Data Discuss. [preprint], https://doi.org/10.5194/essd-2024-519, in review, 2024.

PRIMAP-hist The PRIMAP-hist national historical emissions time series (1750-2023)
Update cycle: Every few monthsDelay: Less than 1 yearCredits: Gütschow, Johannes; Busch, Daniel; Pflüger, Mika (2024): The PRIMAP-hist national historical emissions time series (1750-2023) v2.6. Zenodo.