The latest surveys spell more bad news for the Great Barrier Reef. Following a record high water surface temperature and mass bleaching event in 2016, the Australian icon may be on track for a similar event this year. Aerial and underwater footage from 2016 and 2017, shown in this video, shows the extent of the bleaching and die-off, which has already impacted large portions of the reef.
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Read how "3D-Printed Reefs Offer Hope in Coral Bleaching Crisis."
Learn more about corals.
Footage courtesy ARC Centre of Excellence for Coral Reef Studies via Storyful
The Great Barrier Reef May Be Dying Faster Than We Thought | National Geographic