Draft:Uncompensable heat stress
Submission declined on 29 June 2025 by Rambley (talk).
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Comment: While some of these sources like the Harvard source directly mention it, I'm not sure there's enough WP:SIGCOV in what's been provided. Your DOI sources are also 404s. Rambley (talk) 13:01, 29 June 2025 (UTC)
Uncompensable heat stress is a physiological condition in which the human body is unable to dissipate internal and environmental heat quickly enough to maintain a safe core temperature. It occurs when heat gain exceeds the capacity for heat loss via sweating, convection, and radiation, causing a continual rise in body temperature.[1]. In these conditions, even healthy and acclimatized individuals may develop heat stroke with minimal exertion or exposure[2]. As global temperatures rise, some researchers warn that uncompensable heat stress could lead to tens to hundreds of millions of deaths annually under worst-case warming scenarios, even among fit, hydrated individuals at rest[3]
Thresholds
[edit]A widely cited theoretical upper limit for human survival is a wet-bulb temperature of 35 °C, which represents a point where sweat no longer effectively cools the body[4]. However, more recent studies show uncompensable heat stress occurs at lower wet-bulb thresholds—typically around 30–32 °C—especially during moderate activity and in real-world conditions with clothing, solar radiation, and limited wind[5]
References
[edit]- ^ Morris, N. B., & Jay, O. (2021). "Compensable and uncompensable heat stress: physiological basis and practical implications". Temperature, 8(2), 118–130.
- ^ Buzan, J. R., et al. (2020). "The complicated threshold for human heat tolerance". Nature Climate Change, 10(11), 799–800.
- ^ McColl, K. (2024, Dec 12). "How future heat may kill millions of healthy people". Harvard Salata Institute Climate Blog
- ^ Sherwood, S. C., & Huber, M. (2009). "An adaptability limit to climate change due to heat stress". PNAS, 107(21), 9552–9555.
- ^ Vecellio, D. J., et al. (2022). "Lower wet-bulb temperature limits for young healthy adults in humid and dry heat". Journal of Applied Physiology, 132(1), 248–257.
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