<h1>Unprecedented Coral Bleaching Devastates 84% of Ocean Reefs, Urgent Climate Action Needed to Prevent Ecosystem Collapse</h1> A global coral bleaching event has impacted 84 percent of ocean reefs, marking the most intense occurrence on record. Caused by warming oceans and record sea temperatures, the crisis threatens marine biodiversity and ecosystems. Scientists warn that reducing greenhouse gas emissions is crucial to protecting coral reefs, as current conservation efforts are insufficient to counter the widespread environmental damage.