Residents of low-latitude megacities face rising humid-heat vulnerability as climate warms. We reveal that humid heat — especially at night — worsens the current morbidity burden of mental and behavioral disorders (MBDs) in Shanghai more than high temperatures alone. We project that high greenhouse gas emissions will sharply increase the morbidity burden of MBDs by the 2090s, stressing the need for mitigation.
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References
Mora, C. et al. Global risk of deadly heat. Nat. Clim. Chang. 7, 501–506 (2017). A study projecting that deadly heat events will become increasingly frequent and widespread under future climate scenarios.
Hwong, A. R. et al. Climate change and mental health research methods, gaps, and priorities: a scoping review. Lancet Planet Health 6, e281–e291 (2022). A review that assesses existing research on the links between climate change and mental health.
Li, D., Yuan, J. & Kopp, R. E. Escalating global exposure to compound heat-humidity extremes with warming. Environ. Res. Lett. 15, 064003 (2020). A study quantifying the increasing global exposure to compound heat and humidity extremes under climate warming.
Nori-Sarma, A. et al. Association between ambient heat and risk of emergency department visits for mental health among US adults, 2010 to 2019. JAMA Psychiatry 79, 341–349 (2022). A study assessing the exposure–response relationship between a single exposure indicator, ambient temperature and risk of emergency department visit in the USA.
Pörtner, H.-O. et al. Climate Change 2022: Impacts, Adaptation and Vulnerability — Summary for Policymakers (Intergovernmental Panel on Climate Change, 2022). A report that highlights the escalating risks to ecosystems and human systems under continued global warming.
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This is a summary of: Liang, C. et al. Projecting the morbidity burden of mental and behavioral disorders associated with increasing humid heat in Shanghai. Nat. Mental Health https://doi.org/10.1038/s44220-025-00519-y (2025).
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Humid heat increases mental health risks in a warming world. Nat. Mental Health 3, 1468–1469 (2025). https://doi.org/10.1038/s44220-025-00548-7
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DOI: https://doi.org/10.1038/s44220-025-00548-7