Koreans spin fire cans during “Jwibulnoli” a South Korean folk game at Han River on February 5, 2012 in Seoul, South Korea. The event is part of a “Daeboreum”, a Korean holiday that celebrates the first full moon of the lunar new year. (Photo by Chung Sung-Jun/Getty Images)

On the western side of Mount Hood lies the longest glacier cave system in the contiguous United States. In 2012, these caves were mapped to a combined length of 7,166.8 feet by cave explorers Brent McGregor and Eddy Cartaya. Currently, the total passage length is hundreds of feet less. Glaciers are frozen rivers; they are always moving and changing... (Photo and caption by Josh Hydeman)

This photo taken on July 19, 2020 shows a person taking photos while water is released from the Three Gorges Dam, a gigantic hydropower project on the Yangtze river, to relieve flood pressure in Yichang, central China's Hubei province. Rising waters across central and eastern China have left over 140 people dead or missing, and floods have affected almost 24 million since the start of July, according to the ministry of emergency management. (Photo by AFP Photo/China Stringer Network)

A pilgrim holds up the cross after it was thrown by an Orthodox priest into the water, during an epiphany ceremony to bless the sea, on the southeast resort of Ayia Napa, Cyprus, Friday, January 6, 2023. By tradition, a crucifix is cast into the waters of a lake or river, and it is believed that the person who retrieves it will be freed from evil spirits and will be healthy through the year. (Photo by Petros Karadjias/AP Photo)

Bangladeshi laborers unload watermelons from a boat at the Buriganga River in Dhaka, Bangladesh, 03 April 2024. Watermelon is in harvesting season and is filling the city markets as it arrives from the southern part of Bangladesh. According to the Department of Agriculture Extension (DAE), Barishal has set an ambitious goal to expand watermelon cultivation to 54,002 hectares across six high-yielding districts in the division, which is 14 percent higher than last year. (Photo by Monirul Alam/EPA/EFE)

A view shows “The Farnese Bridge”, a participatory monumental cardboard installation by French artist Olivier Grossetete, over the Tiber river in front of the Palazzo Farnese, the seat of the French embassy in Italy, during its inauguration in Rome on July 13, 2021. A French Embassy project, the Farnese bridge is the realization of the dream of Cardinal Farnese, who wished to build a bridge over the Tiber to connect Palazzo Farnese to the gardens of the Villa Farnesina. A project, at the time, entrusted to Michelangelo, but that remained unfinished. (Photo by Filippo Monteforte/AFP Photo)

A man in Yakutsk, the capital of the Sakha Republic (Yakutia) in the Russian Far East on November 23, 2021. Located in Tuimaada Valley on the Lena River, Yakutsk is the largest city in the permafrost zone. On 23 November 2021, the daytime temperature ranged between –35 and –31 degrees Celsius in Yakutsk. On the night between 22 and 23 November, the temperature went down to –37 degrees Celsius. (Photo by Vadim Skryabin/TASS)

5-year-old Rina Kumari rubs her eye while cracking stones on the banks of Mahananda river in Siliguri, northeast India, March 5, 2005. Over 400 million people in India live below the internationally agreed poverty line (living on less than US $1 per day). According to estimates, several hundred thousand children work as labourers and beg on the streets in India. (Photo by Desmond Boylan/Reuters)