A child looks at a polar bear swimming under a water in its enclosure on a hot summer day at Prague Zoo, Czech Republic, July 30, 2015. (Photo by David W. Cerny/Reuters)
Hot-air balloons float over the Oka River during the Russian Sky International Balloon Festival in Ryazan Region, Russia on July 26, 2021. (Photo by Alexander Ryumin/TASS)
Volunteers distribute water to a woman carrying a child along a street during a hot summer day in Karachi on May 14, 2022. (Photo by Rizwan Tabassum/AFP Photo)
American social media personality, golf instructor and former professional golfer Paige Spiranac attends MAXIM Hot 100 Experience at Hyde Beach at SLS South Beach on July 16, 2022 in Miami Beach, Florida. (Photo by @_paige.renee/Instagram)
A hippopotamus is sprayed with water on a hot summer day at Anna National Zoological Park in Chennai, India on April 26, 2017. (Photo by Arun Sankar/AFP Photo)
Model Amber Rose attends the Maxim Hot 100 Party at the Hollywood Palladium on July 30, 2016 in Los Angeles, California. (Photo by Alberto E. Rodriguez/Getty Images)
Pigeons cool down at a public fountain on a hot summer day at University Plaza in downtown Bucharest, Romania, 10 June 2020. Temperatures in Bucharest reached 30 degrees Celsius. (Photo by Robert Ghement/EPA/EFE)
Indian men sleep in the shadow of an overflowing cloth container of hay, to be used as animal fodder, on a truck on a hot summer day in Ajmer in the western state of Rajasthan on May 30, 2018. (Photo by Shaukat Ahmed/AFP Photo)