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Atmospheric health burden across the century and the accelerating impact of temperature compared to pollution

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Pozzer,  Andrea
Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

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Steffens,  Brendan
Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

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Akritidis,  Dimitris
Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

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Bacer,  Sara
Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

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Citation

Pozzer, A., Steffens, B., Proestos, Y., Sciare, J., Akritidis, D., Chowdhury, S., et al. (2024). Atmospheric health burden across the century and the accelerating impact of temperature compared to pollution. Nature Communications, 15: 15:9379. doi:10.1038/s41467-024-45001-y.


Cite as: https://hdl.handle.net/21.11116/0000-0010-34D4-4
Abstract
Anthropogenic emissions alter atmospheric composition and therefore the climate, with implications for air pollution- and climate-related human health. Mortality attributable to air pollution and non-optimal temperature is a major concern, expected to shift under future climate change and socioeconomic scenarios. In this work, results from numerical simulations are used to assess future changes in mortality attributable to long-term exposure to both non-optimal temperature and air pollution simultaneously. Here we show that under a realistic scenario, end-of-century mortality could quadruple from present-day values to around 30 (95% confidence level:12-53) million people/year. While pollution-related mortality is projected to increase five-fold, temperature-related mortality will experience a seven-fold rise, making it a more important health risk factor than air pollution for at least 20% of the world’s population. These findings highlight the urgent need to implement stronger climate policies to prevent future loss of life, outweighing the benefits of air quality improvements alone.