Coral Bleaching at Lizard Island on the Great Barrier Reef.
© XL Catlin Seaview Survey
This summer's record-breaking coral bleaching on the Great Barrier Reef was made 175 times more likely thanks to climate change.
The Great Barrier Reef’s northern sections have been hit hardest by bleaching.
James Kerry/ARC Centre of Excellence for Coral Reef Studies
The statistic that bleaching has been seen in 93% of surveyed areas of the Great Barrier Reef has sparked worldwide coverage - not all of it accurate.
Sir David on the Great Barrier Reef.
David Attenborough © Serengeti Entertainment
Sir David Attenborough has issued a call the save the Great Barrier Reef.
Bleached coral can take on luminously beautiful pink and purple hues - but don’t be deceived, these corals are under stress.
The bleaching hitting the Great Barrier Reef not only harms corals. As these close-up photos show, it also deprives many other species of a home and livelihood.
Recent aerial surveys found huge amounts of coral bleaching in the Great Barrier Reef.
Terry Hughes/ARC Centre of Excellence for Coral Reef Studies
Warm seas are causing coral 'bleaching' in one of the world's biodiversity hotspots.
Professor Morgan Pratchett surveys bleached corals on Australia’s GBR.
Cassy Thompson, ARC Centre of Excellence for Coral Reef Studies
Bleaching has hit a huge swathe of the Great Barrier Reef, with many corals in the reef's remote northern reaches now expected to die as a result of warm waters linked to this summer's El Niño.
Spencer Gulf at sunset in South Australia.
Australian Bureau of Meteorology
The summer of 2015-2016 was the hottest on record for Australia's oceans.
Pristine coral on the Great Barrier Reef.
Photo copyright Tom Bridge
Banning fishing helps fish, but it also helps reef recover from cyclones, disease, and coral bleaching.
Outbreaks of crown-of-thorns starfish, which eat coral, have been linked to poor water quality.
Starfish image from www.shutterstock.com
To fix pollution on the Great Barrier Reef, some farming practices will have to change.
Bleaching events can leave corals weaker in the face of pollution and other stresses.
AAP Image/University of Queensland/Ove Hoegh-Guldberg
Authorities have moved the Great Barrier Reef onto its highest alert level in response to widespread coral bleaching. Months of monitoring will now be needed to assess the ongoing damage.
A bleached Seriatopora coral.
Right on cue, coral bleaching has struck the Great Barrier Reef, as the world's third mass bleaching event continues.
Don’t dismiss what science has to say about the fate of coral reefs.
Marine scientists have been accused of being biased towards 'doom and gloom'. But it's not bias if the outlook for coral reefs really is gloomy.
The land may be dry, but Western Australia’s waters are full of life.
The Great Barrier Reef might get all the attention, but what about our western coral reefs? Warmer waters and human impacts mean these reefs are in trouble.
Early signs of bleaching coral in Kaheohe Bay Hawaii, August 2015.
XL Catlin Seaview Survey / Underwater Earth
Many corals can't make it through the bleaching events caused by warming ocean waters. But some can – and scientists are trying to learn more about the sources of their resilience.
Soon the oceans will be too warm to support thriving coral reefs.
USFWS - Pacific Region/Flickr
Corals are experiencing only the third global bleaching event in recorded history, caused by warming seas. But worse is yet to come.
After mass bleaching in 1998, more than half of coral reefs in the Seychelles have slowly recovered.
Coral reefs are the poster child for the damage people are doing to the world’s oceans. Overfishing, pollution and declining water quality have all taken their toll on reefs around the world. Perhaps the…
A great butterfly fish enjoys the reef view off Waialae, Hawaii.
Reef historian Iain McCalman, in Sydney, and reef scientist Stephen Palumbi, in California, are monitoring reef degradation from opposite sides of the planet. They compared notes. Iain McCalman: A recent…
New research from Stanford University has revealed that certain types of coral are able to acclimatise to rising sea temperatures…
Bleached and healthy corals on the Great Barrier Reef near Queensland’s Keppel Islands.
Australia’s coral reefs and mountain-top ecosystems are set to suffer from climate change, according to the Intergovernmental Panel on Climate Change’s latest summary of the research. The threats to these…
Bright colourful coral like this may soon disappear.
Greenhouse gas emissions have warmed the oceans in regions such as the Baltic by as much as 1.3°C. It is now thought that 90% of the heat added to the climate system by humans has been absorbed in the…