Following is a transcript of the video. Narrator: This is the Great Barrier Reef, and it's dying. Less than 20 years ago, the world's largest living structure looked like this, and this.

For decades, the Great Barrier Reef has enjoyed World Heritage Status and been synonymous with diving, tourism and with Australia. But in June of this year, UNESCO threatened to downgrade the Great ...

In 2016 and 2017, marine heat waves caused by climate change resulted in mass bleaching, which killed about half of the corals on the Great Barrier Reef, along with many others around the world.

Stretching over 1,200 miles, Australia's Great Barrier Reef is the largest structure on Earth built by living organisms. Even for its size, it houses an incredible biodiversity -- literally ...

The best way to get around the Great Barrier Reef is by car or boat, depending on where you plan to spend the majority of your time. If you're on the mainland, renting a car is the best way to get ...

The World Heritage-listed Great Barrier Reef (GBR), considered the jewel in the crown of coral reefs worldwide and one of Australia's most significant ecological and tourism assets, has been ...

For those who dream of exploring the Great Barrier Reef's underwater paradise, avoid crowds by visiting a lesser-known ...

Bleaching of the coral in the Great Barrier Reef, north-east Australia which is caused by global warming The Great Barrier Reef became a recognised area of ecological importance when it was ...

Satellite imagery has revealed the huge amounts of floodwater heading into the ocean and towards parts of the Great Barrier Reef after Queensland experienced more than two weeks of heavy rain.

One of the seven wonders of the natural world, the Great Barrier Reef lies in the clear blue waters off the northeast coast of Australia. Spanning 14 degrees of latitude, this complex reef system is ...

In 2016 and 2017, marine heat waves caused by climate change resulted in mass bleaching, which killed about half of the corals on the Great Barrier Reef, along with many others around the world.