How a heat dome is formed and why experts blame one for Europe's baking temperatures (opens original article in a new tab)

Europe is facing an early heat wave caused by a heat dome, with experts linking the phenomenon to climate change and emphasizing the need for safety measures against extreme temperatures.

• Heat domes are high pressure systems that trap heat and humidity, leading to extreme temperatures.
• Europe is experiencing an early heat wave with temperatures up to 104°F (40°C), causing 40 drowning fatalities in France.
• Climate change is increasing the frequency, intensity, and persistence of heat waves, making extreme temperatures more likely.