The latest Global Tipping Points Report suggests the world's coral reefs are at risk of mass dieback. More than 80 per cent of coral reefs worldwide have bleached in a marine heatwave in the past two years.
From 1 January 2023 to 20 April 2025, bleaching-level heat stress has impacted 83.7% of the world’s coral reef area.
The fourth global coral bleaching event, announced this week, is an urgent wake-up call to the world.