A new study shows that human-caused climate change made Europe’s recent heatwave up to 4°C hotter in many cities. The extreme heat likely led to higher deaths, especially among vulnerable groups like the elderly.

Europe's latest spell of sizzling heat, which ended last week, caused a threefold rise in heat-related deaths because human-induced climate change boosted the intensity of the heat wave, British scientists said.

Researchers said they believe that human-driven climate change probably intensified the recent European heat wave and increased the number of heat-related deaths.