Heat Records Fall Again as Western Europe Faces Extreme Warmth

Western Europe is facing an intense heat wave, and recent measurements show that temperature records are not only being broken but “smashed.” Scientists say this is the result of two forces acting together. One is a heat dome, a large area of high pressure that traps warm air above a region. Because the air cannot circulate and escape, temperatures climb and stay high for longer than usual. The second factor is climate change. Over time, greenhouse gas pollution has warmed the planet, raising the baseline for hot weather. When a heat dome forms on top of that already-warmed background, the outcome is far more extreme than in earlier decades. Researchers warn that these conditions can quickly affect public health, strain power systems, and disrupt ecosystems. Heat can be especially dangerous for older people, outdoor workers, and anyone without reliable cooling. The current pattern also suggests that extreme heat events may become more frequent as global temperatures continue to rise.