A Hindu devotee takes sand bath at Sangam, the confluence of the rivers Ganges and Yamuna, in Prayagraj, in the northern Indian state of Uttar Pradesh, Monday, June 5, 2023. Prayagraj in the northern Uttar Pradesh state is an important Hindu pilgrimage center. (Photo by Rajesh Kumar Singh/AP Photo)

A group of caimans sit on the banks of the almost dried up Bento Gomes River in the Pantanal wetlands near Pocone, Mato Grosso state, Brazil, Wednesday, November 15, 2023. Amid the high heat, wildfires are burning widely in the Pantanal biome, the world's biggest tropical wetlands. (Photo by Andre Penner/AP Photo)

Flocks of seagulls swarm small fishing boats in the first decade of January 2024 like a scene from Alfred Hitchcock’s The Birds. Colonies of Heuglin’s gulls can be seen almost every morning on the Yamuna River in Delhi, India. (Photo by Raghav Rai Ralhan/Solent News)

An aerial view of people visiting the roaring Hukou Waterfall on the Yellow River on August 11, 2025 in Yan'an, Shaanxi Province of China. Hukou waterfall is witnessing an increasing water flow lately. (Photo by Liu Yijiang/VCG via Getty Images)

Anglers cast lines through holes into a frozen river during an ice fishing competition at the Hwacheon Sancheoneo Ice Festival on January 7, 2012 in Hwacheon-gun, South Korea. (Photo by Chung Sung-Jun/Getty Images)

Boat crew members train on the waters of the Tonle Sap River on the morning of the first day of the Water Festival on November 13, 2016 in Phnom Penh, Cambodia. The yearly three-day Water Festival is one of the most important holidays in Cambodia and celebrates the end of the rainy season and the start of the rice harvesting. The Festival also coincides with the Tonle Sap river reversing course, which it does twice a year. Approximately 2 million people are expected to attend this year's festival, during which 259 boats and nearly 20,000 oarsmen will participate in the races. After a fatal stampede resulting in the death of some 353 people during the Water Festival in 2010, it has been cancelled four times over the past five years, with weather used as an official excuse. (Photo by Omar Havana/Getty Images)

Hamar women dance before a bull jumping ceremony in Ethiopia's southern Omo Valley region near Turmi on September 19, 2016. The Hamar are a Nilotic ethnic group in Ethiopia. The construction of the Gibe III dam, the third largest hydroelectric plant in Africa, and large areas of very “thirsty” cotton and sugar plantations and factories along the Omo river are impacting heavily on the lives of tribes living in the Omo Valley who depend on the river for their survival and way of life. (Photo by Carl De Souza/AFP Photo)