A person uses a fan as she sits on the Seine river banks behind the Notre-Dame Cathedral in Paris as a record-breaking early heatwave scorches a swathe of western Europe on May 28, 2026. The UK and France have reported their hottest ever May days this week as a "heat dome" brought sizzling temperatures more typical of midsummer to western Europe. UN climate chief Simon Stiell said the heatwave was "a brutal reminder of the spiraling impacts of the climate crisis. "The science is clear that human-induced climate change is making these heatwaves more frequent and extreme," Stiell add in a statement. (Photo by Simon WOHLFAHRT / AFP via Getty Images)