Parts of the Great Barrier Reef just experienced the largest coral decline in nearly 40 years. The northern and southern regions saw severe bleaching, mostly due to heat stress from climate change. Cyclones and coral-eating starfish added to the damage, and scientists warn the reef may be approaching a tipping point where it can’t recover between disasters.

Coral is crucial to ocean life. Often called the sea’s architect, it builds reef systems that support about 25% of all marine species. Reefs also protect coastlines, support local economies through fishing and tourism, and hold potential for future medical discoveries. When coral suffers, entire ecosystems and communities are at risk.