Rekordbleichen, Wirbelstürme, gefräßige Seesterne: Das Great Barrier Reef steht erneut unter massivem Stress. Experten sprechen von den schwersten Korallenverlusten seit Beginn der Messungen.

Researchers warn reef may reach tipping point where coral cannot recover fast enough between major catastrophic events

Reefs have been battered by cyclones and starfish that eat coral, but heat stress driven by climate change is the main cause of damage.