A mural is seen on a heavily damaged residential building in the frontline town of Avdiivka, Donetsk region on April 25, 2023, amid the Russian invasion of Ukraine. (Photo by Anatolii Stepanov/AFP Photo)

Rescuers work to put out fire outside a damaged residential building hit by recent shelling in the course of Russia-Ukraine conflict in Donetsk, Russian-controlled Ukraine on November 7, 2023. (Photo by Reuters/Stringer)

British singer-songwriter Rita Ora visits The Empire State Building on July 09, 2024 in New York City. (Photo by Dimitrios Kambouris/Getty Images for Empire State Realty Trust)

A woman holds her cat in front of a destroyed building at the site of an Israeli airstrike in Dahiyeh, Beirut, Lebanon, Wednesday, October 2, 2024. (Photo by Hassan Ammar/AP Photo)

American television personality Stassi Schroeder visits The Empire State Building on April 23, 2025 in New York City. (Photo by John Nacion/Getty Images for Empire State Realty Trust)

The Greenland ice sheet is a vast body of ice covering 660,235 sq miles, roughly 80% of the surface of Greenland. It is the second largest ice body in the world, after the Antarctic Ice Sheet. Some scientists predict that climate change may be near a "tipping point" where the entire ice sheet will melt in about 2000 years. If the entire 2,850,000 cubic kilometres (683,751 cu mi) of ice were to melt, it would lead to a global sea level rise of 7.2 m (23.6 ft).

An Animal Liberation Victoria activist cries as she holds a dead animal at Federation Square on October 1, 2013 in Melbourne, Australia. Over 200 activists gathered with the bodies of deceased animals to publicly grieve their deaths. Animal Liberation Victoria is against the treatment of animals as “property” an promotes a vegan lifestyle. (Photo by Graham Denholm)

Armed Karo herdsman just back from protecting their cattle herds come down to the river to wash decorative clay markings off their bodies at the end of the day in the Omo Valley, South West Ethiopia. Dus, Omo Valley, Ethiopia, January 2008. (Photo by Brent Stirton/Discovery Communications)