http://www.newsweek.com/great-barrier-reef-coral-reef-extinction-survival-946890

You may well have heard that Australia’s iconic Great Barrier Reef is dying as warmer and more acidic waters bleach the system’s vibrant coral reefs. In fact, a heatwave killed nearly a third of the system’s corals in 2016.

Now, scientists writing in the journal Nature Geoscience have discovered the reef has bounced back from near-extinction five times in the last 30,000 years. The current stresses, however, are probably far more intense than those felt in the past.