Pakistani street performers sit around fire waiting for customers on a chilly evening in Rawalpindi, Pakistan, Wednesday, November 11, 2015. Some parts of Pakistan are facing a harsh winter. (Photo by B. K. Bangash/AP Photo)

This undated photo provided by NOAA in May 2018 shows aurora australis near the South Pole Atmospheric Research Observatory in Antarctica. When a hole in the ozone formed over Antarctica, countries around the world in 1987 agreed to phase out several types of ozone-depleting chemicals called chlorofluorocarbons (CFCs). Production was banned, emissions fell and the hole shriveled. But according to a study released on Wednesday, May 16, 2018, scientists say since 2013, there’s more of a banned CFC going into the atmosphere. (Photo by Patrick Cullis/NOAA via AP Photo)

Merit Prize Winner: “A Well Earned Rest in the Sahara”. This photo of Moussa Macher, our Tuareg guide, was taken at the summit of Tin-Merzouga, the largest dune (or erg) in the Tadrat region of the Sahara desert in southern Algeria. Moussa rested while waiting for us to finish our 45-minute struggle to the top. It only took ten minutes of rolling, running, and jumping to get back down. The Tadrat is part of the Tassili N'Ajjer National Park World Heritage area, famous for its red sand and engravings and rock paintings of cattle, elephants, giraffes, and rhinos that lived there when the climate was milder. Photo location: Summit of Tin-Merzouga, Tadrat, Tassili N'Ajjer National Park, Algeria. (Photo and caption by Evan Cole/National Geographic Photo Contest)

Team Japan competes during the team free preliminaries of artistic swimming at the 19th FINA World Championships in Budapest, Hungary, Wednesday, June 22, 2022. (Photo by Anna Szilagyi/AP Photo)

Commandos of the “Underwater Defence” (SAS), the special operation unit of the Turkish Navy take part in a military training in Istanbul, Turkiye on June 13, 2022. (Photo by Ali Atmaca/Anadolu Agency via Getty Images)

A person walks through the Brooklyn Bridge during a snow storm, amid the coronavirus disease (COVID-19) pandemic, in New York City, New York, U.S., February 1, 2021. (Photo by Brendan McDermid/Reuters)

In this photo released by the Newton Fire department, a juvenile raccoon looks out from a grate after getting stuck in Newton, Massachusetts on August 1, 2019. The fire department was able to rescue the raccoon and free him from the grate. (Photo by HO/Newton Fire Department/AFP Photo)

Carnival revellers take the metro in Rio de Janeiro, Brazil on February 19, 2023. Shaking the ground to the beat of their drums, Rio de Janeiro's famed carnival parades returned Sunday in a swirl of glitter, sequins and samba, the festival's first full-on edition since Covid-19 and Brazil's bitterly divisive elections. (Photo by Carl de Souza/AFP Photo)