Extreme Heat Deaths Rise Globally, Killing One Person Per Minute

Extreme heat is a significant and often underestimated threat, responsible for more U.S. fatalities than any other weather disaster. Globally, extreme heat now causes one death every minute, a rate that has increased by 23 percent since the 1990s. These heat-related deaths are frequently undercounted, both domestically and internationally. Outdoor workers, the elderly, children, and individuals with chronic health conditions are identified as the most vulnerable populations. However, the risks of extreme heat can affect anyone, often compounded by a societal bias that associates sunny days with pleasant weather rather than danger.

The increasing severity of heat events is directly linked to climate change. While individual heat events cannot be solely attributed to climate change, scientific consensus confirms that climate change is making heat waves more frequent and more intense. Even in years with extreme cold, the overall global average temperature is rising. Additional factors, such as the El Niño weather pattern, can further amplify these warming effects by increasing Pacific Ocean temperatures, leading to exacerbated global heat.

Places that are naturally hot are experiencing even higher temperatures, while regions not traditionally prepared for extreme heat are increasingly facing dangerous conditions. This trend highlights a growing disparity in preparedness and resilience to heat. The scientific community's understanding of climate change's role in intensifying heat waves has solidified, emphasizing the urgent need to address its impacts. The interconnectedness of global weather patterns and climate change means that even localized events can contribute to a broader trend of rising global temperatures.