An armed demonstrator lifting a Palestinian and Yemeni flags gestures during an anti-Israel and anti-US rally in the Huthi-controlled capital Sanaa on January 19, 2024, protesting the US designation of Yemen's Huthi rebels as “terrorists”, after a series of attacks on Red Sea shipping amid ongoing battles between Israel and the militant Hamas group in Gaza. (Photo by Mohammed Huwais/AFP Photo)

Sculptures entitled “The Rising Tide” by British sculptor Jason deCaires Taylor are seen beside the River Thames in front of the Houses of Parliament and the London Eye ferris wheel in London, September 3, 2015. The representations of four horses and riders are fully visible at low tide but become immersed underwater twice a day as the Thames rises to reach full tide. The installation will be on display throughout September as part of the annual Totally Thames festival. (Photo by Toby Melville/Reuters)

Among the fish populations that could be harmed by the Xayaburi dam in Laos is the critically endangered Mekong giant catfish, considered by the Guinness Book of World Records to be the world’s largest freshwater fish. The fish, which grows to 650 pounds and about 10 feet long, is only found in the Mekong River. It is migratory, moving between downstream habitats in Cambodia upstream to northern Thailand and Laos each year to spawn. Some experts fear the Xayaburi dam could block the migration and drive the giant catfish to extinction. (Photo by Courtesy of Zeb Hogan/University of Nevada, Reno)

A view through mist shows the Kirk of Saint Mary Magdalene in Primorsk, Leningrad Region, Russia on March 24, 2019. (Photo by Anton Vaganov/Reuters)

A person sits in a chair next to the Garzweiler lignite opencast mine at the Luetzerath village near Erkelenz, Germany, Tuesday, January 10, 2023. Environmental activists were locked in a standoff with police this week around the hamlet of Luetzerath that's due to be bulldozed for the expansion of a nearby lignite mine. (Photo by Michael Probst/AP Photo)

Giant bamboo cones, used to protect rice from overnight moisture during its drying process, in the Brahmanbaria district of Bangladesh in the second decade of April 2025. (Photo by Bipul Ahmed/Solent News & Photo Agency)

“Just hanging out”. As full autumn hits the valley of Hallingdal in Norway, this bear chills out in a tree which seems to barely cover its weight. Photo location: Flå, Hallingdal, Norway. (Photo and caption by Jorgen Tharaldsen/National Geographic Photo Contest)

Indian children help to push an auto rickshaw along a flooded street after heavy rain in Jalandhar on June 29, 2017, as the monsoon season begins. (Photo by Shammi Mehra/AFP Photo)