Health costs of wildfire smoke to rise under climate change

Abstract The global health burden from wildfire smoke is expected to worsen under climate change, yet we lack quantitative estimates of the economic costs of increased mortality and hospital admissions for cardiovascular and respiratory conditions. Using a quantitative wildfire risk assessment frame...

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Bibliographic Details
Main Authors: Hamish Clarke, Brett Cirulis, Nicolas Borchers-Arriagada, Ross Bradstock, Owen Price, Trent Penman
Format: Article
Language:English
Published: Nature Portfolio 2023-07-01
Series:npj Climate and Atmospheric Science
Online Access:https://doi.org/10.1038/s41612-023-00432-0
Description
Summary:Abstract The global health burden from wildfire smoke is expected to worsen under climate change, yet we lack quantitative estimates of the economic costs of increased mortality and hospital admissions for cardiovascular and respiratory conditions. Using a quantitative wildfire risk assessment framework and a 12-member climate model ensemble, we find a median increase in wildfire smoke health costs of 1–16% by 2070 across diverse landscapes in south-eastern Australia. Ensemble maximum cost increases (5–38%) often exceed abatements from fuel treatment, while costs decline moderately (0–7%) for the ensemble minimum. Unmitigated climate change will increase the health burden of wildfire smoke and undermine prescribed burning effectiveness.
ISSN:2397-3722