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Past and projected climate change impacts on heat-related child mortality in Africa

Chapman, Sarah, Birch, Cathryn E, Marsham, John H, Part, Chérie, Hajat, Shakoor, Chersich, Matthew F, Ebi, Kristie L, Luchters, Stanley, Nakstad, Britt and Kovats, Sari (2022) 'Past and projected climate change impacts on heat-related child mortality in Africa'. Environmental Research Letters, Vol 17, Issue 7, e074028.

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Children (<5 years) are highly vulnerable during hot weather due to their reduced ability to thermoregulate. There has been limited quantification of the burden of climate change on health in sub-Saharan Africa, in part due to a lack of evidence on the impacts of weather extremes on mortality and morbidity. Using a linear threshold model of the relationship between daily temperature and child mortality, we estimated the impact of climate change on annual heat-related child deaths for the current (1995–2020) and future time periods (2020–2050). By 2009, heat-related child mortality was double what it would have been without climate change; this outweighed reductions in heat mortality from improvements associated with development. We estimated future burdens of child mortality for three emission scenarios (SSP119, SSP245 and SSP585), and a single scenario of population growth. Under the high emission scenario (SSP585), including changes to population and mortality rates, heat-related child mortality is projected to double by 2049 compared to 2005–2014. If 2050 temperature increases were kept within the Paris target of 1.5 °C (SSP119 scenario), approximately 4000–6000 child deaths per year could be avoided in Africa. The estimates of future heat-related mortality include the assumption of the significant population growth projected for Africa, and declines in child mortality consistent with Global Burden of Disease estimates of health improvement. Our findings support the need for urgent mitigation and adaptation measures that are focussed on the health of children.

Item Type: Article
Additional Information: Letter
Subjects: WA Public Health > WA 30 Socioeconomic factors in public health (General)
WA Public Health > Sanitation. Environmental Control > General Sanitation and Environmental Control > WA 670 General works
WD Disorders of Systemic, Metabolic or Environmental Origin, etc > Disorders and Injuries of Environmental Origin > WD 600 General works
Faculty: Department: Clinical Sciences & International Health > International Public Health Department
Digital Object Identifer (DOI):
SWORD Depositor: JISC Pubrouter
Depositing User: JISC Pubrouter
Date Deposited: 24 Nov 2022 12:21
Last Modified: 24 Nov 2022 12:21


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