Almost all coral reef ecosystems face risk of collapse in 50 years, study warns

A global assessment warns that nearly all coral reef ecosystems face a high risk of collapse within the next 50 years, primarily due to rising ocean temperatures and heat waves. The International Union for Conservation of Nature (IUCN) found that 96% of shallow-water reef systems are critically endangered and could disappear by 2075.

Famous reefs like the Great Barrier Reef, Coral Triangle, Mesoamerican Barrier Reef System, and Red Sea reefs are all critically endangered. IUCN scientists emphasize that coral reefs possess an ability to recover from severe bleaching events, but the risk of collapse is escalating. Coral reefs support significant biodiversity, coastal communities, and provide natural barriers against coastal erosion and storms.

Reducing pollution, overfishing, and coastal development can help reefs survive, alongside ambitious emissions reductions and stronger protection and restoration efforts.