Extreme heat in the summer of 2025 is reported to have caused a significant number of deaths in England and across Europe, with estimates ranging from over 1,300 to 16,500. The exact number of heat-related deaths is uncertain, with different sources providing varying figures, including 1,504 deaths in England. The heatwave has prompted concerns and calls for action, including warnings about wildfires and discussions about legislation to protect workers from extreme temperatures.