UNIVERSE OF NATURE

🔥 Extreme heat The world is heating up faster than ever—and it’s no longer just about discomfort. Extreme heat is now changing how humans live, move, and survive. What used to be a hot summer day is increasingly becoming a dangerous environment where even simple activities like walking, working, or exercising can put lives at risk. New global research reveals a shocking truth: heatwaves are not only intensifying but also pushing parts of Earth toward conditions that are becoming physically unlivable. This is not a distant future—it is happening right now. 🌡️ The Science Behind Extreme Heat and Human Limits What Makes Heat Dangerous? Heat becomes dangerous when high temperature combines with humidity. This prevents the human body from cooling itself through sweating. Scientists measure this using a concept known as “wet-bulb temperature,” which reflects how effectively the body can release heat. When this threshold is exceeded, even healthy individuals can over...