A dead fish lies on the bank of Oder River on the German-Polish border, in Brieskow-Finkenheerd, Frankfurt (Oder), Germany, August 11, 2022. Authorities are looking into the cause of the mysterious fish deaths. (Photo by Annegret Hilse/Reuters)

Participants of the “Lady in red“ procession, marking the day of the Summer Solstice, walk on a promenade of the Yenisei River in Krasnoyarsk, Russia on June 22, 2019. (Photo by Ilya Naymushin/Reuters)

Hindu women worship the Sun god in the polluted waters of the river Yamuna during the Hindu religious festival of Chatth Puja in New Delhi, India, November 3, 2019. (Photo by Adnan Abidi/Reuters)

A man crosses a mud-covered trail carrying his wife on his back at a flooded Han River park in Seoul, South Korea, August 4, 2020. (Photo by Kim Hong-Ji/Reuters)

Police officers intervene as a man attempts to hang himself during a protest to oppose the sharing of river water with a neighboring state, in Bengaluru, India on September 26, 2023. (Photo by Reuters/Stringer)

This aerial view shows youths swimming to cool off in the waters of Iraq's Euphrates river during a heatwave, in the district of al-Hindiyah east of Karbala on June 7, 2024. (Photo by Karar Jabbar/AFP Photo)

Tourists watch roaring torrent carrying a large amount of yellow sediment at the Hukou Waterfall on the Yellow River on August 15, 2024 in Yan'an, Shaanxi Province of China. (Photo by VCG/VCG via Getty Images)

Fishermen jump into a small river to catch trout as they celebrate Fischertag (Fisherman's Day) in downtown Memmingen, southern Germany, July 25, 2015. The annual Fisherman's Day (Fischertag) tradition goes back to the year of 1465 where every fisherman who were born in Memmingen tries to catch trout from the river. The participant who catches the biggest trout will be named the “Fisher King” for one year. (Photo by Michaela Rehle/Reuters)