Marine Heatwaves and Coral Reef Welfare

Coral bleaching events cause mass mortality in reef ecosystems affecting millions of marine animals.

Key Facts

50% of the Great Barrier Reef has been lost since 1995
Mass bleaching events have increased in frequency from once per 25 years to once per 6 years
Coral bleaching causes starvation and death in reef-dependent fish, invertebrates, and sea turtles
Ocean acidification compounds heat stress on coral reef ecosystems

Welfare Considerations

Coral reef collapse is an ecological catastrophe with profound animal welfare implications. Reefs support approximately 25% of all marine species — fish, invertebrates, sea turtles, and sharks — that depend on reef structure for feeding, shelter, and reproduction. Mass bleaching events cause widespread starvation as the algae that feed corals are expelled. The cascading welfare effects — animals displaced, starving, and exposed without reef shelter — affect millions of individuals. Addressing climate change is the most impactful intervention for reef animal welfare.

What You Can Do

Support aggressive climate action as the primary reef protection measure
Use reef-safe sunscreen that does not contribute to coral bleaching
Never purchase coral for aquariums — choose only certified aquaculture-grown coral
Support marine conservation organizations working on reef restoration