Climate change and population: an assessment of mortality due to health impacts
2021
Pottier, Antonin | Fleurbaey, Marc | Méjean, Aurélie | Zuber, Stéphane | Centre International de Recherche sur l'Environnement et le Développement (CIRED) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École des hautes études en sciences sociales (EHESS)-AgroParisTech-École nationale des ponts et chaussées (ENPC)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) | Paris School of Economics (PSE) ; Université Paris 1 Panthéon-Sorbonne (UP1)-École normale supérieure - Paris (ENS-PSL) ; Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École des hautes études en sciences sociales (EHESS)-École nationale des ponts et chaussées (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | Centre National de la Recherche Scientifique (CNRS) | Paris Jourdan Sciences Economiques (PJSE) ; Université Paris 1 Panthéon-Sorbonne (UP1)-École normale supérieure - Paris (ENS-PSL) ; Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École des hautes études en sciences sociales (EHESS)-École nationale des ponts et chaussées (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | Centre d'économie de la Sorbonne (CES) ; Université Paris 1 Panthéon-Sorbonne (UP1)-Centre National de la Recherche Scientifique (CNRS) | This research has been supported by the Agence nationale de la recherche (ANR), France project FairClimpop, Grant # ANR-16-CE03-0001-01. | ANR-16-CE03-0001,FAIR-CLIMPOP,Equité, changement climatique et population(2016) | ANR-17-EURE-0001,PGSE,Ecole d'Economie de Paris(2017)
International audience
Mostrar más [+] Menos [-]Inglés. We develop a model of population dynamics accounting for the impact of climate change on mortality through ve channels (heat, diarrhoeal disease, malaria, dengue, undernutrition). An age-dependent mortality, which depends on global temperature increase, is introduced and calibrated. We consider three climate scenarios (RCP 6.0, RCP 4.5 and RCP 2.6) and find that the five risks induce deaths in the range from 135,000 per annum (in the near term) to 280,000 per annum (at the end of the century) in the RCP 6.0 scenario. We examine the number of life-years lost due to the five selected risks and find figures ranging from 4 to 9 million annually. These numbers are too low to impact the aggregate dynamics but they have interesting evolution patterns. The number of life-years lost is constant (RCP 6.0) or decreases over time (RCP 4.5 and RCP 2.6). For the RCP 4.5 and RCP 2.6 scenarios, we find that the number of life-years lost is higher today than in 2100, due to improvements in generic mortality conditions, the bias of those improvements towards the young, and an ageing population. From that perspective, the present generation is found to bear the brunt of the considered climate change impacts.
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