Heat is testing the limits of human survivability. Here’s how it kills

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🗞️ Driving the news: Extreme heat is increasingly becoming a lethal threat, pushing the limits of human survivability
• Cases like that of ultra-marathon runner Philip Kreycik, who died from heat-related complications, highlight the dangers of high temperatures, especially when combined with humidity

🔭 The context: Heat is the deadliest form of extreme weather, exacerbated by climate change
High humidity can prevent the body from cooling through sweat, leading to dehydration, heat exhaustion, and potentially fatal heatstroke
• The most vulnerable include the elderly, young, and even highly fit individuals

🌍 Why it matters for the planet: The rise in global temperatures and increasing frequency of heatwaves, particularly in densely populated and less affluent regions, pose significant health risks
• This situation is expected to worsen, making adaptation critical

⏭️ What's next: Scientists predict that billions will face life-threatening heat levels if global temperatures continue to rise
• The World Health Organization estimates 489,000 annual deaths due to heat, a number likely underestimated due to underreporting

💬 One quote: “We’ve essentially weaponized summer,” said Matthew Huber, a climate professor at Purdue University

📈 One stat: The maximum wet-bulb temperature healthy humans can endure is around 87.8°F, combining heat and humidity

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