The Aletsch Glacier is pictured at dusk in Fiesch, Switzerland, August 11, 2015. One of Europe's biggest glaciers, the Great Aletsch coils 23 km (14 miles) through the Swiss Alps – and yet this mighty river of ice could almost vanish in the lifetimes of people born today because of climate change. The glacier, 900 metres (2,950 feet) thick at one point, has retreated about 3 km (1.9 miles) since 1870 and that pace is quickening. (Photo by Denis Balibouse/Reuters)

A woman wears a face mask in the part of the city near neighbourhoods known for burning coal for heating in Ulaanbaatar, Mongolia January 26, 2017. Not many people in Ulaanbaatar wear masks to protect themselves against pollution. (Photo by B. Rentsendorj/Reuters)

In this November 20, 2017 photo, Indian kushti wrestlers fight in the ring, during their daily training at an akhada, a kind of wrestling hostel at Sabzi Mandi, in New Delhi, India. Like many traditions in rapidly modernizing India, kushti wrestling faces the threat of being left behind. But for many poor families, the ancient sport provides a glimmer of hope. (Photo by Dar Yasin/AP Photo)

Fashion model Gisele Bundchen saddles up in a belt and chaps for a photoshoot in February 2023. Brazilian Gisele, 42, looked at home with a range of outfits for Vogue Italia. (Photo by Rafael Pavarotti)

Members of an electoral commission destroy unused ballots, after polling stations closed on the final day of the presidential election in Saint Petersburg, Russia on March 17, 2024. (Photo by Anton Vaganov/Reuters)

British singer-songwriter and television actress Rita Ora in the second decade of February 2025 shows off her abs while getting a caffeine fix. (Photo by ritaora/Instagram)

A robot dog is seen before the Gujarat Titans versus Delhi Capitals match in the Indian Premier League in Ahmedabad, India on April 19, 2025. (Photo by Amit Dave/Reuters)

Mario Barrios, left, fights Manny Pacquiao in a welterweight title boxing match Saturday, July 19, 2025, in Las Vegas. (Photo by John Locher/AP Photo)