FILE - A man walks in the water as the sun rises above the Miribel lake, outside Lyon, central France, Saturday, June 18, 2022. A heat wave that's already lasted more than a week keeps on baking the US, Asia, Europe and even the Arctic. (AP Photo/Laurent Cipriani, File)

Mitchell Clearman takes a photo of a sign at El Arroyo restaurant in Austin, Texas, on a hot afternoon, Thursday, June 23, 2022. A heat wave that's already lasted more than a week keeps on baking the US, Asia and even the Arctic. (Jay Janner/Austin American-Statesman via AP)/

FILE - A firefighter plane drops a fire retardant on a burning area of San Martin de Unx in northern Spain, Sunday, June 19, 2022. A European heat wave has caused problems with fires in Germany and Spain. (AP Photo/Miguel Oses, File)

People crowd the registration counter at Tej Bahadur Sapru Hospital in Prayagraj, Uttar Pradesh state, India, Thursday, June 23, 2022. The hospital is experiencing heavy rush this summer with several patients turning up with heat related ailments. (AP Photo/Rajesh Kumar Singh)

A man stands under a shower at the public beach of Paleo Faliro, in southern Athens, Greece, on Thursday, June 23, 2022. A heat wave that's already lasted more than a week keeps on baking the US, Asia, Europe and even the Arctic. (AP Photo/Thanassis Stavrakis)

FILE - People sunbathe on a beach in Barcelona, Spain, June 19, 2022. A heat wave that's already lasted more than a week keeps on baking the US, Asia, Europe and even the Arctic. (AP Photo/Emilio Morenatti, File)

Temperature shows over 100 degrees before a baseball game between the Atlanta Braves and San Francisco Giants at Truist Park in Atlanta, Thursday, June 23, 2022. A heat wave that's already lasted more than a week keeps on baking the US, Asia, Europe and even the Arctic. (Curtis Compton/Atlanta Journal-Constitution via AP)