A man holds his umbrella during snowfall on the Areopagitou pedestrian street beneath the Acropolis hill during snowfall in Athens, Greece, January 10, 2017. (Photo by Alkis Konstantinidis/Reuters)

College students take shelter at a traffic point as a man paddles his rickshaw through a flooded road during heavy rain in Guwahati, India, June 13, 2017. (Photo by Anuwar Hazarika/Reuters)

Paul, 9, dumps a bucket of water over his head at a fountain near government buildings during hot weather on July 1, 2015 in Berlin, Germany. Temperatures across northern Europe are rising and in Germany a high of 36 degrees is forecast for the weekend. (Photo by Sean Gallup/Getty Images)

A young lady poses for the camera as police steward boozers away from pubs and bars in Newcastle, United Kingdom on October 23, 2020. The extra restrictions which servely limits social mixing in hospitality venues will come into effect on October 23, 2020. (Photo by North News and Pictures/The Sun)

A one-horned rhinoceros crosses a road inside Kaziranga national park on the eve of the World Rhino Day in Gauhati, India, Tuesday, September 21, 2021. Kaziranga is home to nearly 2,500 one-horned rhinos and is the world’s largest habitat for the rare animal. (Photo by Anupam Nath/AP Photo)

A member of the public wears a pandemic face mask ahead of the prime minister announcing the government's Covid-19 winter strategy on September 13, 2021 in Manchester, England. Tomorrow, British Prime Minister Boris Johnson will set out his plan to manage Covid-19 through the winter, including what actions would need to be taken if the NHS hospital system were at risk of being overwhelmed. (Photo by Christopher Furlong/Getty Images)

Surfers take to the waves at Bondi Beach on October 16, 2021 in Sydney, Australia. COVID-19 restrictions eased across NSW on Monday 11 October for fully vaccinated residents after the state passed its 70 per cent double vaccination target. (Photo by Brook Mitchell/Getty Images)