Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: March 27, 2025

Abstract Heatwaves are one of the deadliest meteorological hazards, posing a substantial risk to human health, environment, and economy. The frequency intensity heatwaves have substantially escalated throughout United States (US), as evidenced by noticeable contrast between average occurrence two per year during 1960s surge six 2010s. primary objective this study is assess impacts past heatwave events in major US cities, project future scenarios, analyze relationship their associated health environmental consequences. First, we investigate spatio-temporal variations intensity, frequency, duration heatwaves, along with anticipated changes under various shared socioeconomic pathways till end 2100. Secondly, examine adverse on well-being, considering both current demographics projections. Our results highlight significant projected increases across all regions, most dramatic escalations high-emission scenarios. By late twenty-first century, cities could experience up 2–4 times days annually compared baseline period (1985–2014), night-time durations potentially covering over half some regions. Furthermore, analysis using composite indices reveals severe heat stresses, particularly southwestern like Las Vegas Yuma, southern Miami, indicating rising trend susceptibility due climatic demographic shifts. This contributes growing body research advocating proactive measures address escalating threat heatwaves. integrating climate shift, it provides nuanced assessment urban vulnerability, specific focus densely populated high-risk

Language: Английский