Environmental Degradation, Poverty and Health Outcomes in Nigeria
Keywords:
Degradation, Environmental, Health Outcome, PovertyAbstract
This study investigated the effect of environmental degradation and poverty on health outcomes in Nigeria from 1981 to 2024. Utilizing secondary data from the Central Bank of Nigeria (CBN), World Bank, and National Bureau of Statistics (NBS). The study employed time series econometric techniques including the Augmented Dickey-Fuller (ADF) test for stationarity and the Autoregressive Distributed Lag (ARDL) model for long- and short-run analysis. Key findings indicate that poverty significantly reduces life expectancy in the long run, while environmental degradation such as carbon dioxide and oil spillage negatively impact both life expectancy and maternal mortality rates. Conversely, nitrogen oxide emissions demonstrated a mixed but sometimes beneficial effect on life expectancy. Additionally, economic growth was positively linked to health outcomes in the long term, while government health spending showed limited impact. The study concluded that urban poverty and environmental degradation significantly undermine health outcomes in Nigeria. It recommended integrated policy measures that promote inclusive urban development, strengthen environmental regulation, improve healthcare access, and invest in education and employment opportunities for sustainable urban living.
References
Adelekan, I. O. (2010). Vulnerability of poor urban communities to flooding in Lagos, Nigeria. Environment and Urbanization, 22(2), 433–450. https://doi.org/10.1177/0956247810372660 Adeyanju, O., et al. (2025). Impacts of urban expansion and industrial activities on Nigeria’s environment and public health. Journal of Environmental Management and Sustainable Development, 14(1), 45–62. Amadi, S. A., & Alapiki, H. C. (2014). Environmental degradation and public health in the Niger Delta region of Nigeria. Journal of Political Inquiry, 6(2), 112–128. Atuyambe, L., et al. (2021). Health impacts of air pollution in the context of climate change in Africa: A narrative review. African Journal of Environmental Health, 9(3), 115–128. Baek, J., Downtown, J. E., & Kennedy, J. J. (2006). The impact of climate change on regional agricultural productivity. Agricultural Economics, 35(3), 243–258. https://doi.org/10.1111/j.1574-0862.2006.00157.x Berazneva, J., & Byker, T. (2018). Forest loss and child health: Evidence from Nigeria. World Development, 106, 198–213. https://doi.org/10.1016/j.worlddev.2018.01.021 Bijma, J., Pörtner, H. O., Yesson, C., & Rogers, A. D. (2013). Climate change and the oceans: What does the future hold? Marine Pollution Bulletin, 74(2), 495–505. https://doi.org/10.1016/j.marpolbul.2013.07.022 Bloom, D. E., Canning, D., & Sevilla, J. (2004). The effect of health on economic growth: A production function approach. World Development, 32(1), 1–13. https://doi.org/10.1016/j.worlddev.2003.07.002
Bratt, J. H. (2012). The Brundtland Commission report and sustainable development: A retrospective analysis. Journal of Environment & Development, 21(1), 34–58. https://doi.org/10.1177/1070496511435753 Cropper, M. L. (1977). Health, investment in health, and occupational choice. Journal of Political Economy, 85(6), 1273–1294. https://doi.org/10.1086/260637 Daly, H. E. (1973). Toward a steady-state economy. W. H. Freeman and Company. Dhanya, M. (2015). Environmental pollution and its impact on human reproductive health. International Journal of Environmental Health Research, 25(4), 389–402. https://doi.org/10.1080/09603123.2014.945033 Dinda, S. (2004). Environmental Kuznets curve hypothesis: A survey. Ecological Economics, 49(4), 431–455. https://doi.org/10.1016/j.ecolecon.2004.02.011 Echendu, A. J., et al. (2022). Air pollution, climate change and overall ecosystem health in the Niger Delta region of Nigeria: An environmental justice lens. Environmental Justice, 15(4), 210–222. https://doi.org/10.1089/env.2021.0068 Erondu, N., & Nwakanma, C. (2025). Interconnected threats of environmental degradation, socio-political instability, and public health challenges in Nigeria. Journal of Political Ecology, 32(1), 88–104. Eze, P., & Iheonu, C. (2025). Health shocks and household vulnerability to poverty in Nigeria: Evidence from the general household survey. African Development Review, 37(1), 89–104. https://doi.org/10.1111/1467-8268.12781 framework: Matthew, O. A., Owolabi, O. A., Osabohien, R., Urhie, E., Ogunbiyi, T., Olawande, T. I., Edafe, O. D., & Daramola, P. J. (2020). Carbon emissions, agricultural output and life expectancy in West Africa. International Journal of Energy Economics and Policy, 10(3), 489–496. https://doi.org/10.32479/ijeep.9177 Fuchs, V. R. (2004). The health sector's share of gross domestic product: Myopic fears vs. historical reality (NBER Working Paper No. 10119). National Bureau of Economic Research. https://doi.org/10.3386/w10119 Grossman, G. M., & Krueger, A. B. (1991). Environmental impacts of a North American free trade agreement (NBER Working Paper No. 3914). National Bureau of Economic Research. https://doi.org/10.3386/w3914 Grossman, M. (1972). On the concept of health capital and the demand for health. Journal of Political Economy, 80(2), 223–255. https://doi.org/10.1086/259880 Gupta, N., Katkoria, R., & Mirchandani, M. (2007). Child health, poverty, and economic development in developing nations. Journal of Human Development, 8(2), 215–234. https://doi.org/10.1080/14649880701370966 Hsiao, W. C., Siar, S., & O'Brien, J. (2019). Health as a pillar of human capital and economic growth. Health Affairs, 38(6), 923–930. https://doi.org/10.1377/hlthaff.2019.00122 Idris, A. (2023). Impact of poverty on people’s health in Nigeria: An ARDL approach. Journal of Health Economics and Development, 19(2), 45–60. Intergovernmental Panel on Climate Change [IPCC]. (2021). Climate change 2021: The physical science basis. Cambridge University Press. https://doi.org/10.1017/9781009157896 Jimoh, A., & Helen, M. (2025). Environmental degradation and urbanization on health outcomes in Nigeria: Focusing on life expectancy as a proxy for health. Nigerian Journal of Economic Studies, 41(2), 77–94. Johnson, D. L., et al. (1997). Meanings of environmental terms. Journal of Environmental Quality, 26(3), 581–589. https://doi.org/10.2134/jeq1997.00472425002600030002x Kelishadi, R., & Poursafa, P. (2010). Air pollution and non-communicable diseases in children: A review. International Journal of Preventive Medicine, 1(4), 223–231. Kuper, H., & Marmot, M. (2003). Job security, job insecurity, and health in the Whitehall II study. Social Science & Medicine, 56(12), 2473–2482. https://doi.org/10.1016/S0277-9536(02)00277-5 Kuznets, S. (1955). Economic growth and income inequality. The American Economic Review, 45(1), 1–28. Lawal, N., Opeloyeru, O., & Adegbola, O. (2023). Life expectancy, public healthcare expenditure and economic growth: The Nigerian experience. Studies of Applied Economics, 41(3). https://doi.org/10.25115/sae.v41i3.9277
Lelieveld, J., Evans, J. S., Fnais, M., Giannadaki, D., & Pozzer, A. (2015). The contribution of outdoor air pollution sources to premature mortality on a global scale. Nature, 525(7569), 367–371. https://doi.org/10.1038/nature15371 Lynch, J. W., Smith, G. D., Kaplan, G. A., & House, J. S. (2000). Income inequality and mortality: Importance to health of individual income, psychosocial environment, and material conditions. BMJ, 320(7243), 1200–1204. https://doi.org/10.1136/bmj.320.7243.1200 Malthus, T. R. (1798). An essay on the principle of population. J. Johnson in St Paul's Church-Yard. Manisalidis, I., Stavropoulou, E., Stavropoulos, A., & Bezirtzoglou, E. (2020). Environmental and health impacts of air pollution: A review. Frontiers in Public Health, 8, Article 14. https://doi.org/10.3389/fpubh.2020.00014 Manns, J. (2010). Deconstructing the Brundtland definition: Sustainability and its discontents. Global Environmental Politics, 10(3), 85–102. https://doi.org/10.1162/GLEP_a_00014 Marmot, M., & Wilkinson, R. G. (Eds.). (2006). Social determinants of health (2nd ed.). Oxford University Press. https://doi.org/10.1093/acprof:oso/9780198565896.001.0001 Mathers, C. D., & Schofield, D. J. (1998). The health contribution of a changing socioeconomic environment. Medical Journal of Australia, 168(6), 276–280. https://doi.org/10.5694/j.1326-5377.1998.tb138984.x Miller, G. T. (1998). Environmental science: Sustaining the Earth (5th ed.). Wadsworth Publishing. Musa, A., et al. (2025). Environmental quality, healthcare development, and economic growth in Nigeria: An ARDL approach. Journal of African Economies, 34(2), 145–168. https://doi.org/10.1093/jae/ejae014 Nkalu, C. N., & Edeme, R. K. (2019). Environmental hazards and life expectancy in Africa: Evidence from GARCH model. SAGE Open, 9(1), 1–8. https://doi.org/10.1177/2158244019830500 Ogunjimi, J. A., & Adebayo, A. O. (2019). Health expenditure, health outcomes and economic growth in Nigeria. Asian Journal of Economics and Empirical Research, 6(2), 130–139. https://doi.org/10.20448/journal.501.2019.62.130.139 Okechi, R. C. (2017). Fundamentals of environmental science and resource management. SpringField Publishers. Olaniyan, O. (2025). Population growth, poverty, and health outcomes in Nigeria (1981–2023). Nigerian Journal of Economic and Social Studies, 67(1), 112–130. Orji, A., & Okechukwu, O. (2015). Health infrastructure and economic growth in Nigeria: An empirical evaluation. Journal of Economics and Sustainable Development, 6(10), 115–127. Phelps, C. E. (1976). Demand for health insurance: A theoretical and empirical investigation (Rand Corporation Report R-1054-OEO). Rand Corporation. Pona, I., Xiaoli, J., Ayantobo, O. O., & Tetteh, J. (2021). Environmental health situation in Nigeria: Assessing environmental risk factors and their impact on health outcomes from 2007 to 2017. Journal of Public Health in Africa, 12(2), 154–165. https://doi.org/10.4081/jphia.2021.1543 Rakodi, C. (2002). A livelihoods approach, conceptual issues and definitions. In C. Rakodi & T. Lloyd-Jones (Eds.), Urban livelihoods: A people-centred approach to reducing poverty (pp. 3–22). Earthscan Publications. Ray, D. (1998). Development economics. Princeton University Press. Ritchie, H., & Roser, M. (2019). $text{CO}_2$ and greenhouse gas emissions. Our World in Data. https://ourworldindata.org/co2-and-other-greenhouse-gas-emissions Solomon, S., et al. (Eds.). (2007). Climate change 2007: The physical science basis. Cambridge University Press. Sorlie, P. D., Backlund, E., & Keller, J. B. (1995). US mortality by economic, demographic, and social characteristics: The National Longitudinal Mortality Study. American Journal of Public Health, 85(7), 949–956. https://doi.org/10.2105/ajph.85.7.949 Stavropoulou, E., & Bezirtzoglou, E. (2020). Environmental pollution and industrialization: A historical overview of ecological impacts. Microbial Ecology in Health & Disease, 31(1), Article 1779776. https://doi.org/10.1080/16512235.2020.1779776 Swain, R. B. (2016). Defining health: Beyond the absence of disease. Global Health Action, 9(1), Article 31698. https://doi.org/10.3402/gha.v9.31698 Todaro, M. P., & Smith, S. C. (2020). Economic development (13th ed.). Pearson
Turner, J. B., & Marino, C. F. (1994). Psychological status of unemployed workers: Approach to the study of economic stress. Journal of Social Issues, 50(4), 77–91. https://doi.org/10.1111/j.1540-4560.1994.tb02425.x Tyagi, S., Garg, N., & Paudel, R. (2014). Environmental degradation: Sources and impacts. International Journal of Scientific and Research Publications, 4(2), 1–6. Ubi, P. S., & Ndem, S. E. (2019). Poverty and health outcomes in Nigeria: A vector autoregressive approach. Journal of Economics and Sustainable Development, 10(14), 78–92. Ucheje, S., & Ikebude, C. (2024). Environmental contamination and its impact on public health in Nigeria. Journal of Environmental Science and Public Health, 8(1), 33–48. https://doi.org/10.26502/jesph.96120145 Umaroğullari, M., & Aydin, M. (2020). Urbanization and $text{CO}_2$ emissions: An empirical analysis for developing economies. Environmental Science and Pollution Research, 27(12), 13420–13431. https://doi.org/10.1007/s11356-020-07850-x UN-Habitat. (2016). Urbanization and development: Emerging futures (World Cities Report 2016). United Nations Human Settlements Programme. UNICEF. (2024). The State of Nigeria's Children 2024: Summary of the updated situation analysis of children and adolescents in Nigeria. UNICEF Nigeria. United States Global Change Research Program [USGCRP]. (2018). Impacts of global change on human health in the United States. USGCRP. https://doi.org/10.7930/J0PN93H5 Urhie, E., Afolabi, A., Afolabi, A., Matthew, O., Osabohien, R., & Ewetan, O. (2020). Economic growth, air pollution and health outcomes in Nigeria: A moderated mediation model. Cogent Social Sciences, 6(1), 1719570. https://doi.org/10.1080/23311886.2020.1719570 Usenata, E. (2018). Re-examining the Environmental Kuznets Curve in developing economies: A critical review. Journal of Environmental Economics and Policy, 7(3), 280–295. https://doi.org/10.1080/21606544.2018.1438902 Weil, D. N. (2013). Economic growth (3rd ed.). Pearson. Williams, J., Jones, C., & Smith, R. (2018). Anthropogenic forcing and climate anomalies in West Africa. Climate Dynamics, 50(5), 1821–1839. https://doi.org/10.1007/s00382-017-3721-y World Bank. (2019). Poverty and shared prosperity 2018: Piecing together the poverty puzzle. World Bank. https://doi.org/10.1596/978-1-4648-1330-8 World Bank. (2020). World development indicators 2020. World Bank. https://doi.org/10.1596/978-1-4648-1549-2 World Bank. (2024). Nigeria development update: Staying the course—Progress amid pressing challenges. World Bank. World Bank. (2025). Building momentum for inclusive growth: Nigeria development update. World Bank. World Bank. (2026). Nigeria. World Development Indicators. World Bank. World Commission on Environment and Development [WCED]. (1987). Our common future. Oxford University Press. World Health Organization [WHO]. (2018). Global status report on noncommunicable diseases 2018. World Health Organization. World Health Organization [WHO]. (2023). Constitution of the World Health Organization / Human rights and health. World Health Organization. World Health Organization, United Nations Children's Fund, United Nations Population Fund, World Bank Group, & United Nations Department of Economic and Social Affairs, Population Division. (2025). Trends in maternal mortality 2000 to 2023. World Health Organization.