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.

The rapid analysis by World Weather Attribution calculated that climate change might have tripled the death toll from the event.