Solomon Islands' Progress and Recent Impact
✨ Key Insights
Moderate Per Capita Emissions
The Solomon Islands' recent per capita greenhouse gas emissions are rated as moderate, standing at 4.14 tonnes per person per year. This level of emissions reflects the country's ongoing challenges in balancing economic development with environmental sustainability. The moderate rating indicates that while the Solomon Islands are not among the highest emitters per capita, there is still room for improvement in reducing emissions to align with global climate goals.
Land Use and Emissions
A significant portion of the Solomon Islands' emissions is driven by land-use changes, particularly deforestation. The data shows that CO2 emissions from land use, land-use change, and forestry (LULUCF) account for a substantial majority of the total emissions. Historical events, such as the peak of the logging industry in the late 1990s, have contributed to this trend. The extensive deforestation during this period not only released stored carbon but also diminished the region's carbon sequestration capacity, highlighting the need for sustainable land management practices.
Declining Emissions Trend
Encouragingly, the Solomon Islands have experienced a declining trend in total greenhouse gas emissions over the past decade, with an annual decrease of approximately 2.27%. This reduction is primarily attributed to a decrease in emissions from land-use changes, as efforts to curb deforestation and promote reforestation take effect. The initiation of projects like the Tina River Hydropower Project also signals a shift towards cleaner energy sources, which could further reduce emissions in the future.
Global Emissions Share
Despite the challenges, the Solomon Islands' share of global emissions remains relatively small, at just 0.0056%. While this figure might seem negligible, it underscores the importance of collective action among smaller nations to address climate change. By continuing to reduce emissions and adopting sustainable practices, the Solomon Islands can contribute to global efforts to mitigate the impacts of climate change, demonstrating that every nation's actions matter in the fight against global warming.
Background
Recent per Capita Emissions
The Recent per Capita Emissions are a crucial indicator of a nation's greenhouse gas emissions. They are a fair measure for comparing the emissions of nations, taking into account the size of their populations.
Because any greenhouse gas emissions above 0 cause warming, the per capita emissions shouldn't be judged against the global average; they should be compared based on how far they are above 0. Therefore, our rating scale is:
- Extremely High: above 10 tonnes per capita per year
- Very High: above 7.5 tonnes
- High: above 5 tonnes
- Moderate: above 2.5 tonnes
- Low: above 0 tonnes
- Negative Emissions: under 0
The per capita emissions should be close to zero for each country, indicated here by the green & low areas.
Last Year Emissions
This is the total amount of CO2, CH4, N2O, and F-Gases emissions of a nation in 2023 (last available year in the data) expressed in megatonnes of CO2-equivalents. The gases have different atmospheric lifetimes (decay) and warming effects, for this reason, we use the GWP100 (100 year time horizon method) to calculate the global warming potential of CH4, N2O, and F-Gases to express them in CO2-equivalents.
Wikipedia: Global Warming PotentialLast Year Share
This is a nation's share of the global emissions in 2023 (last available year in the data). For many countries this value can be quite small, especially when compared to nations like United States or China. It is easy and dangerous to jump to the conclusion that small shares of emissions don't matter. They matter as a group. Even small emitters can account for a significant amount of total emissions. Consider the following examples:
- 24 nations, each between 0.5 and 1.5% of the total emissions, make up 20% of the total emissions.
- 27 nations, each between 0.5 and 2% of the total emissions, make up 25% of the total emissions.
- 162 nations with a share below 0.5% make up 15% of the total.
- 3 nations, make 44% of the total emissions: China, United States and India. However, China and India together have a population of about 2.9 billion.
Per Capita Emissions are therefore the most crucial indicator to represent the impact of a nation regardless of its size.
Yearly Emissions Trend
This is a nation's trend per year over the last 10 years. It is a good indicator of the trajectory of national emissions and can be used as a simple framework to judge a nation's trend vs. international goals:
- Stop warming around 1.5 °C: All nations together, and each nation, should drop emissions by 17% per year — 8,000 Megatonnes of CO2 Equivalent per Year.
- To achieve Net Zero in 2050 and to stop warming at ~1.7 °C: All nations should together, and each nation, should drop emissions by 4% per year — 2,100 Megatonnes of CO2 Equivalent per Year.
- Additionally, to return warming to pre-industrial levels almost all human-induced CO2 has to be taken out of the atmosphere.
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. Population data are also from Global Carbon Project where available, however, for many nations it doesn't have historic population going back to 1850. Those historic gaps are filled with population data from Our World in Data.
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.
Our World in Data Population - Our World in Data
Update cycle: YearlyDelay: 7 monthsCredits: HYDE (2023); Gapminder (2022); UN WPP (2024) – with major processing by Our World in Data