Justin Gilligan joins scientists on an expedition to the far northern Great Barrier Reef to witness the annual mass coral spawning spectacle and to look for ways to help this ecosystem under pressure.
It’s not unusual for a young PhD student studying the Great Barrier Reef to watch the coral they’d been observing for months bleach in just a single summer.
Distinguished professor and coral biologist Terry Hughes says the continued downward trajectory of the Great Barrier Reef is inevitable.
A government institute has found a significant decline in hard coral cover over the past five years, which scientists say will continue if anthropogenic global warming isn’t addressed.
The colour! These late 19th-century illustrations of the corals of the Great Barrier Reef are mesmerising.
The severe and repeated bleaching of the Great Barrier Reef has not only damaged corals, it has reduced the reef’s ability to recover.
Coral bleaching can occur with or without an El Niño event, prompting concerns from scientists that Queensland’s record- breaking heatwave increases the likeliness of a third mass bleaching event in just four years.
See the video.