A recent study reveals that extreme heat driven by climate change caused the deaths of over 2,300 people across Europe between June 22 and July 2. The deaths occurred in 12 major cities, including Paris, Milan, Barcelona, and others in France, Germany, Spain, Portugal, and Italy. At least 1,500 fatalities were directly attributed to climate-related heatwaves. Milan was the worst affected, followed by Paris and Barcelona. Experts warn that heatwaves are becoming silent killers and could pose even greater public health risks in the future.