Of the 2,300 people estimated to have died during this period, 1,500 deaths were linked to climate change, which made the heatwave more severe, according to the study conducted by scientists at Imperial College London and the London School of Hygiene and Tropical Medicine.

Around 2,300 people died of heat-related causes across 12 European cities during the severe heatwave that ended last week, according to a scientific analysis.

Scientists have linked last week’s European heat wave to human-caused climate change and estimate that climate change was responsible for 1,500 deaths.