(FILES) Children form a reef fish on a beach in Hong Kong on April 23, 2015 on the occasion of the 3rd annual Kids Ocean Day. The event is aimed at raising awareness of seas protection and the conservation of coral reef worldwide. Coral reefs could vanish in as little as a decade, warned a landmark UN report by dozens of global experts on December 17, 2024, impacting nearly one billion people who benefit from these highly threatened marine ecosystems. "Coral reefs are the most endangered ecosystems and may disappear globally in the next 10 to 50 years," said the report by the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services. (Photo by Philippe LOPEZ / AFP) (Photo by PHILIPPE LOPEZ/AFP via Getty Images)