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Biogeosciences Anthropogenic CO 2 emissions in Africa

An understanding of the regional contributions and trends of anthropogenic carbon dioxide (CO 2) emissions is critical to design mitigation strategies aimed at stabilizing atmospheric greenhouse gases. Here we report CO 2 emissions from the combustion of fossil fuels and land use change in Africa for various time periods. Africa was responsible for an average of 500 Tg C y −1 for the period 2000–2005. These emissions resulted from the combustion of fossil fuels (260 Tg C y−1) and land use change (240 Tg C y −1). Over this period, the African share of global emissions from land use change was 17%. For 2005, the last year reported in this study, African fossil fuel emissions were 285 Tg C accounting for 3.7% of the global emissions. The 2000–2005 growth rate in African fossil fuel emissions was 3.2% y −1, very close to the global average. Fossil fuel emissions per capita in Africa are among the lowest in the world, at 0.32 t C y−1 compared to the global average of 1.2 t C y −1. The average amount of carbon (C) emitted as CO 2 to produce 1 US$ of Gross Domestic Product (GDP) in Africa was 187 g C/$ in 2005, close to the world average of 199 g C/$. With the fastest population growth in the world and rising per capita GDP, Africa is likely to increase its share of global emissions over the coming decades although emissions from Africa will remain low compared to other continents.