Ocean

This is why coral reefs are so vital for the planet

Peter Gash, owner and manager of the Lady Elliot Island Eco Resort, snorkels during an inspection of the reef's condition in an area called the 'Coral Gardens' located at Lady Elliot Island and north-east from the town of Bundaberg in Queensland, Australia, June 11, 2015. REUTERS/David Gray/File photo - D1BETGZOWZAB

Australia’s Great Barrier Reef has declined by 50% since 1985. Image: REUTERS/David Gray/File photo

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More than a quarter of the world’s reef-building corals are under threat Image: Statista
Skeletons of ocean corals make perfect habitats for marine organisms
Image: Reuters/David Loh
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Coral is sensitive to changes in temperature, light or nutrients
Image: National Ocean Service
Earth’s coral reefs are under threat Image: Reuters/David Loh
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