Swan Uppers try to capture a swan and it's Cygnets on the River Thames near Windsor, England, during Swan Upping, with Windsor Castle in background, Tuesday July 20, 2021. The ancient tradition of Swan Upping is the annual census to gauge the numbers and health of the swan population on the River Thames. (Photo by Steve Parsons/PA Wire via AP Photo)

People wade through a road flooded by heavy rain in Kurume, Fukuoka prefecture, western Japan, Saturday, August 14, 2021. Torrential rain pounding southwestern Japan triggered a mudslide early Friday that swallowed some people and was threatening to cause flooding and more landslides in the region. (Photo by Kyodo News via AP Photo)

Police officers block a road as lava rises following the eruption of a volcano on the Island of La Palma, in Tacande, Spain on September 22, 2021. (Photo by Borja Suarez/Reuters)

People cling on to a crowded train as it leaves a railway station during the ongoing Coronavirus Disease (COVID-19) outbreak in Ghaziabad, India, September 21, 2021. (Photo by Anushree Fadnavis/Reuters)

Burning candles illuminate graves as a Bangladeshi man observes a contemplative moment on All Souls' Day at the Dhaka Christian Cemetery at Wari in Dhaka, Bangladesh, 02 November 2021. People on All Saints Day and All Souls Day pay respect to deceased relatives and loved ones by placing flowers on their tombs or maintaining their graves and lighting candles. (Photo by Monirul Alam/EPA/EFE)

Alina Serban (L) poses during a photo session for the poster of her show in Bucharest on October 20, 2021. Roma actress and playwright Alina Serban grew up watching TV and going to the theatre without any stories “with or about people like us” – something she set out to change, becoming the first to have her work on the stage of Bucharest's National Theatre. (Photo by Bogdan Dinca/AFP Photo)

An activist is juggling next to police officers at the Dannenrod forest, during a protest of environmentalists against the extension of the A49 motorway, near Dannenrod, Germany, November 27, 2020. (Photo by Kai Pfaffenbach/Reuters)

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)