Almost all shallow-water coral reefs now face extinction risk, study warns

Almost all of the world’s shallow-water coral reefs face an extremely high risk of collapse in the next 50 years, the International Union for Conservation of Nature (IUCN) has warned in a new global assessment. In a report released on Thursday, the world authority on threatened wildlife classified 96 percent of the planet’s coral reef systems as “critically endangered”, its highest risk category, with total extinction possible by 2075. “The future threat of climate change is looming and severe, and that poses a very high risk to the survival of these ecosystems,” said Mishal Gudka, scientific lead of the IUCN Red List of Coral Reef Ecosystems assessment.