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    Great Barrier Reef Faced 5 Near-Death Moments

    To understand how the reef dealt with climate change in the past, scientists drilled into the sea bed nearby, extracting rock cores from up to 150 feet underground. They found that it’s had several close calls over the last 30,000 years, and that rising seas, jumps in sediment levels, and “meltwater pulses” from thawing glaciers caused the reef to slowly migrate. While the report shows how resilient it can be, researchers caution it means little for the reef’s fate over the coming decades as ocean temperatures are increasing faster than before.

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