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The Great Barrier Reef has lost half its corals in the past three decades. Diminished populations of the larger breeding corals means there are fewer baby corals—which affects the reef's ability to recover from the impacts of climate change
© Andreas Dietzel
The Great Barrier Reef has lost half its corals
A new study of the Great Barrier Reef shows populations of its small, medium and large corals have all declined in the past three decades.