People walk on the installation “The Floating Piers” on Lake Iseo by Bulgarian-born artist Christo Vladimirov Yavachev, known as Christo, at the installation's last weekend near Sulzano, northern Italy, July 2, 2016. (Photo by Wolfgang Rattay/Reuters)

Burundian refugees gather on the shores of Lake Tanganyika in Kagunga village in Kigoma region in western Tanzania with their belongings, as they wait for MV Liemba to transport them to Kigoma township, May 17, 2015. Burundi's embattled President Pierre Nkurunziza sacked his defense and foreign ministers on Monday, five days after surviving an attempted coup by generals opposed to his bid for a third term in office. (Photo by Thomas Mukoya/Reuters)

Fires approach a home near Lower Lake, Calif., Friday, July 31, 2015. A series of wildfires were intensified by dry vegetation, triple-digit temperatures and gusting winds. The golden hills of California were being blackened Friday by a series of wildfires egged on by bone-dry vegetation, triple-digit temperatures and gusting winds. (Photo by Jeff Chiu/AP Photo)

An Orthodox child is given an icy dip in a lake in celebration of Epiphan, near the village of Vorontsovka, some 20 km from the Kyrgyz capital of Bishkek, Kyrgyzstan, 19 January 2019. People believe that bathing in blessed waters during the holiday of Epiphany strengthens their spirit and body. (Photo by Igor Kovalenko/EPA/EFE)

A drone photo shows an aerial view of a part of Augusta Ancient City, belonging to the Roman period, revealed following the withdrawal of water level of Seyhan Dam Lake, in Adana, Turkey on September 07, 2021. (Photo by Eren Bozkurt/Anadolu Agency via Getty Images)

Dalmatian pelicans jostle over a fish meal on September 9, 2021. Every year about 100 of the birds fly to feast at Lake Kerkini, central Macedonia, Greece. (Photo by Peter Bradley/Solent News & Photo Agency/Solent News)

The Sydney Skyline is seen before the lights are switched off for Earth Hour on March 26, 2011 in Sydney, Australia. Earth Hour encourages individuals around the world to turn off their lights for one hour at 20:30 local time on March 26, 2011 to take a stand against climate change. The largest Earth Hour was in 2010 when 128 countries participated.

Three one-month-old lioness cubs are held by a keeper as they take their first outing on February 21, 2010 at the Ramat Gan Safari Park near Tel Aviv, Israel. The still unnamed cubs are the first triplet females to be born at the safari park and officials say their birth will ensure the continuity of the park's pride of lions. (Photo by David Silverman/Getty Images)