A medical worker in protective gear sprays mist on her colleague during a hot day at an outdoor clinic for coronavirus tests at a public health facility in the southwestern city of Gwangju, South Korea, 05 June 2020. (Photo by Yonhap/EPA/EFE)

A reveller falls over into the road in Newcastle, Britain, July 4, 2020 on the day pubs and restaurants were finally allowed to reopen. (Photo by North News and Pictures)

Elsa, Dolly, Jeanie, Vince, Titch and Bailey savour seaside smells at Reculver Towers and Roman Fort, Kent, United Kingdom on February 23, 2021. The southeast of England will be warm again. (Photo by Liz Gregg/Triangle News)

A woman wearing a traditional costume attends the celebrations marking the National Flag Day and the Day of Kyrgyz national “Ak-kalpak” hat at the central Ala-Too Square in Bishkek on March 4, 2021. (Photo by Vyacheslav Oseledko/AFP Photo)

Japanese macaques, also known as snow monkeys, play as they soak in a hot spring in Jigokudani valley in Nagano Prefecture, northwest of Tokyo Saturday, March 6, 2021. (Photo by Kiichiro Sato/AP Photo)

A protester pours Coca-Cola on the face of a comrade to diminish the effects of tear gas during a crackdown by security forces on a demonstration against the military coup in Yangon's Thaketa township on March 19, 2021. (Photo by AFP Photo/Stringer)

A classic American car is wrapped in plastic to prevent sea salt from corroding it in Havana, Cuba, Tuesday, March 2, 2021. Vintage cars in Cuba are part of daily life with most classic cars being used as taxis and to transport tourists. (Photo by Ramon Espinosa/AP Photo)

An elephant cools off at a zoo in Karachi, Pakistan, 31 March 2021. Caretakers at Karachi's zoo were working to keep animals cool during a​ heatwave affecting southern Pakistan. (Photo by Shahzaib Akber/EPA/EFE)