A reef shell lies on a beach as the sun sets on Lady Elliot Island located north-east of the town of Bundaberg in Queensland, Australia, June 10, 2015. UNESCO World Heritage delegates recently snorkelled on Australia’s Great Barrier Reef, thousands of coral reefs, which stretch over 2,000 km off the northeast coast. Surrounded by manta rays, dolphins and reef sharks, their mission was to check the health of the world's largest living ecosystem, which brings in billions of dollars a year in tourism. Some coral has been badly damaged and animal species, including dugong and large green turtles, are threatened. UNESCO will say on Wednesday whether it will place the reef on a list of endangered World Heritage sites, a move the Australian government wants to avoid at all costs, having lobbied hard overseas. Earlier this year, UNESCO said the reef's outlook was “poor”. (Photo by David Gray/Reuters)

The moon rises behind the skyline and financial district in Toronto, November 25, 2015. (Photo by Mark Blinch/Reuters)

Ana Mendez Casteñeda smokes marijuana during “Fumaton 420” outside the national Senate in Mexico City, Tuesday, April 20, 2021. The demonstrators are calling for the legalization of marijuana. (Photo by Marco Ugarte/AP Photo)

This picture taken in late December 2022 and released from North Korea's official Korean Central News Agency (KCNA) on January 2, 2023 shows North Korea's leader Kim Jong Un meeting with representatives who participated in the 9th meeting of the Korean Boy Scouts during a commemorative photo session in Pyongyang. (Photo by KCNA via KNS/AFP Photo)

Myanmar's Theiri Aung, seen in action during the women's sepak takraw semifinal against Vietnam, at the Southeast Asian Games in Hanoi, on May 17, 2022. (Photo by Athit Perawongmetha/Reuters)

A girl with face pantings (C) looks on during a demonstration to mark al-Quds (Jerusalem) Day, after Friday prayers, in Kuala Lumpur on April 14, 2023. (Photo by Mohd Rasfan/AFP Photo)

A lynx cub that followed a villager in the forest, is fed by a mother and her son for 2 days at the Koyulhisar district of Sivas, Turkiye on October 4, 2023. After 2 days, the lynx cub was taken under protection by the Sivas Department of Nature Conservation and National Parks teams. (Photo by Serhat Zafer/Anadolu Agency via Getty Images)

Jazmin Sawyers of Great Britain competes in the Women's Long Jump Final during the Athletics competition on day 8 of the European Championships Munich 2022 at Olympiapark on August 18, 2022 in Munich, Germany. (Photo by Alexander Hassenstein/Getty Images)