World’s coral reefs crossing survival limit, experts warn
PARIS: The world’s tropical coral reefs have almost certainly crossed a point of no return as oceans warm beyond a level most cannot survive, a major scientific report announced on Monday. It is the first time scientists have declared that Earth has likely reached a so-called “tipping point” — a shift that could trigger massive and often permanent changes in the natural world. “Sadly, we’re now almost certain that we crossed one of those tipping points for warm water or tropical coral reefs,” report lead Tim Lenton, a climate and Earth system scientist at the University of Exeter, said. This conclusion was supported by real-world observations of “ unprecedented ” coral death across tropical reefs since the first comprehensive assessment of tipping points science was published in 2023, the authors said. In the intervening years, ocean temperatures have soared to historic highs, and the biggest and most intense coral bleaching episode ever witnessed has spread to more than 80 per c...