People cool off at Trocadero fountain near the Eiffel Tower during a heat wave in Paris, Wednesday, June 24, 2026. (AP Photo/Christophe Ena)

A worker drinks water on a construction site during high temperatures in Boulogne Billancourt, outside Paris, Wednesday, June 24, 2026. (AP Photo/Christophe Ena )

A person cools off at Trocadero fountain near the Eiffel Tower during a heat wave in Paris, Wednesday, June 24, 2026. (AP Photo/Christophe Ena)

A drugstore sign shows the temperature of 41 degrees Celsius (105,8 degrees Fahrenheit) in Bordeaux, southwestern France, on Tuesday, June 23, 2026, as the national weather service, Meteo France, placed 54 departments, about half the country, under a red heat wave alert. (AP Photo/Caroline Blumberg)

A pedestrian tries to keep cool, using a fan to shelter form the sun as she walks over Westminster Bridge, in London, Wednesday, June 24, 2026. (AP Photo/Alastair Grant)

Faithful shelter for the hot sun as they wait for Pope Leo's XIV weekly general audience in St. Peter's Square at The Vatican, Wednesday, June 24, 2026. (AP Photo/Alessandra Tarantino)

A person cools off at Trocadero fountain near the Eiffel Tower during a heat wave in Paris, Wednesday, June 24, 2026. (AP Photo/Christophe Ena)

A man runs over a bridge in Frankfurt, Germany, Wednesday, June 24, 2026. (AP Photo/Michael Probst)