Secondary school graduates play in a fountain as they celebrate the last day of school, traditionally called the “last bell” in central Kiev, Ukraine on May 31, 2019. (Photo by Valentyn Ogirenko/Reuters)

A Chinese ethnic Lisu honey hunter holds a large piece of wax from a hive while gathering wild cliff honey in a gorge on May 10, 2019 near Mangshi, in Dehong prefecture, Yunnan province China. (Photo by Kevin Frayer/Getty Images)

In this Tuesday, August 27, 2019, file photo, a climber stops to take pictures of clouds while climbing towards the summit of Mount Fuji to watch the sunrise, in Japan. (Photo by Jae C. Hong/AP Photo/File)

Indian mourners perform a cremation on the roof of a building overlooking The Manikarnika Ghat in Varanasi on August 23, 2016. India's holy city of Varanasi has been forced to halt cremations along the banks of the sacred river Ganges as deadly floods from monsoon rains hit parts of the country, an official said. More than 100,000 people have been forced from their homes in recent days in northern Uttar Pradesh and neighbouring Bihar states as rain-swollen rivers burst their banks. (Photo by Sanjay Kanojia/AFP Photo)

In this photograph taken on August 25, 2016, an Afghan shepherd watches over his sheep as they graze on the outskirts of Herat. (Photo by Aref Karimi/AFP Photo)

In this Sunday, September 23, 2012 file photo, masked and armed Somali pirate Hassan stands near a Taiwanese fishing vessel washed ashore after the pirates were paid a ransom and the crew were released in the once-bustling pirate den of Hobyo, Somalia. Pirates have hijacked an oil tanker off the coast of Somalia, Somali officials and piracy experts said Tuesday, March 14, 2017, in the first hijacking of a large commercial vessel there since 2012. (Photo by Farah Abdi Warsameh/AP Photo)

Woman carrying luggage walks along a railway track on the outskirts of Mumbai, India on November 12, 2020. (Photo by Francis Mascarenhas/Reuters)

People rollerblade along the beach a day before renewed restrictions due to a surge of coronavirus disease (COVID-19) cases in Los Angeles, California, U.S. November 29, 2020. (Photo by Brandon Bell/Reuters)