A woman takes a selfie picture at the Poklonnaya Hill in western Moscow near the main building of the Moscow State University on June 17, 2020, as the air temperature approaches 30 degrees Celsius. (Photo by Alexander Nemenov/AFP Photo)

A zookeeper feeds a hippopotamus with a watermelon in its enclosure in Belgrade's zoo, Serbia, July 20, 2015. Temperatures in Serbia have risen up to 40 degrees Celsius (104 degrees Fahrenheit), according to official meteorological data. (Photo by Marko Djurica/Reuters)

Brazilian Tapir Tique is treated to a nice cold shower by the zoo keeper at Taronga Zoo on January 8, 2013 in Sydney, Australia. Temperatures are expected to reach as high as 43 degrees around Sydney today. (Photo by Marianna Massey)

A crane loads logs at the Novoyeniseisk wood processing plant, with the air temperature at about minus 20 degrees Celsius (minus 4 degrees Fahrenheit), in the town of Lesosibirsk in Krasnoyarsk Region, Siberia, Russia, February 16, 2016. The plant exports timber to Europe, Northern Africa and Asia. The Taiga, also known as the boreal forest, on the coast of the Angara River and Yenisei River is one of the main areas for the industrial cutting of wood thanks to the high quality of the Angara pine. Open air work continues all year around regardless to temperatures which can drop to minus 52 degrees Celsius (minus 61.6 degrees Fahrenheit), according to employees. (Photo by Ilya Naymushin/Reuters)

Apple CEO Tim Cook discusses the new iPhone 6 and iPhone 6 plus on Tuesday, September 9, 2014, in Cupertino, Calif. The iPhone 6 will have a screen measuring 4.7 inches, while the iPhone 6 Plus will be 5.5 inches. (Photo by Marcio Jose Sanchez/AP Photo)

Nobby the polar bear cools down as he plays in a lake at the Yorkshire Wildlife Park in Doncaster, England, Friday June 17, 2022. A blanket of hot air stretching from the Mediterranean to the North Sea is giving much of western Europe its first heat wave of the summer, with temperatures forecast to top 30 degrees Celsius (86 degrees Fahrenheit) from Malaga to London on Friday. (Photo by Danny Lawson/PA Wire via AP Photo)

Fog hangs between pine trees in a forest near Neubrueck, eastern Germany, on November 20, 2012. Meteorologists forecast cloudy sky and temperatures around 5 degrees Celsius for the region. (Photo by Patrick Pleul/AFP Photo)

Hardy Dutch swimmers brave the icy North Sea on January 1, 2012 in Scheveningen, Netherlands. A record number of 10,000 people took the plunge in this year's traditional New Year's dip. The high turnout was attributed to the mild weather with a sea temperature of 8 degrees compared to 4 degrees last year. (Photo by Jasper Juinen/Getty Images)