⏰ when
When Did the Great Barrier Reef Form?
naturegeography
Quick Answer
The current Great Barrier Reef structure began forming about 6,000–8,000 years ago.
The Full Story
While coral has existed in the area for millions of years, the present Great Barrier Reef structure started growing about 6,000 to 8,000 years ago as sea levels stabilised after the last Ice Age. The reef system stretches over 2,300 km along Australia's northeast coast and covers about 344,400 square kilometres, making it the largest coral reef system on Earth. It supports about 1,500 species of fish and 400 types of coral. Climate change and coral bleaching pose severe threats to its survival.
Key Facts
1.The reef is visible from space.
2.Coral bleaching events in 2016, 2017, and 2020 damaged large portions of the reef.
3.The reef generates about A$6.4 billion annually for the Australian economy through tourism.
YouTube Angle
Suggested video title for this topic:
"The Living Reef — How the Great Barrier Reef Built Itself"