Les bénéfices sanitaires d’une meilleure qualité de l’air induits par une politique climatique ambitieuse compensent les coûts de réduction des émissions en europe

Abstract : Air quality and related health effects are not only affected by policies directly addressed at air pollution but also by climate mitigation. This study addresses how different climate policy pathways indirectly bear upon air pollution in terms of improved human health in Europe. It puts in perspective mitigation costs and monetised health benefits of reducing PM2.5 and ozone concentrations. Air quality in Europe and related health impacts are assessed using a comprehensive modelling suite, based on global and regional climate and chemistry-transport models together with a health impact assessment tool. This allows capturing both the impact of climate policies on emissions of air pollutants and the geophysical impact of climate change on air quality. Results are presented for projections at the 2050 horizon, for two consistent air pollution and climate policy scenarios. The analysis shows that enforcement of current European air quality policies effectively reduces health impacts from air pollution. A move towards stringent climate policies on a global scale, in addition to limiting global warming, creates co-benefits in terms of reduced health impacts in 2050 in the mitigation scenario relative to the reference scenario and air pollution cost savings in Europe. These co-benefits offset a major part of the additional cost of climate policy in this region.
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Simone Schucht, Augustin Colette. Les bénéfices sanitaires d’une meilleure qualité de l’air induits par une politique climatique ambitieuse compensent les coûts de réduction des émissions en europe. Rapport Scientifique INERIS, 2015, 2014-2015, pp.20-21. ⟨ineris-01869526⟩

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