Heat-related deaths in the United States have tripled since 2010, killing over 2,300 Americans in 2025 alone. Extreme heat is now the deadliest weather hazard in the country.
Who's Most at Risk
- Outdoor workers (construction, agriculture, delivery drivers)
- Elderly living alone without adequate AC
- People experiencing homelessness
- Low-income communities in urban heat islands
- Children under 5 and adults over 65
Why Deaths Are Increasing
Temperatures are rising, but the deadliest factor is nighttime heat. When temperatures don't drop below 80°F overnight, the body can't recover from daytime heat stress. These "tropical nights" have increased 40% since 2000 in major U.S. cities.
What's Being Done
OSHA proposed the first federal heat protection standard for workers in 2024, mandating water, rest, and shade when temperatures exceed 80°F. Some cities have appointed Chief Heat Officers to coordinate heat response.
Arizona has opened 24/7 cooling centers. Texas is debating mandating AC in rental properties. But advocacy groups say the response remains inadequate given the scale of the crisis.
