The Great Barrier Reef is bleaching again. Without greater action on climate change and water quality, its World Heritage status could be listed as "in danger".
The British overseas territory faces an environmental crisis.
Tanzania has experienced two major coral bleaching events. Major coral bleaching events occur when sea surface temperatures are high thanks to El Nino.
Two-thirds of the corals in the northern part of the Great Barrier Reef have died on in the reef's worst-ever bleaching event, according to the latest underwater surveys.
Western Australia's super-corals are adapted to high temperatures, but even they didn't escape the recent bleaching event unscathed.
Months after record breaking coral bleaching, research teams are taking stock of the damage on the Great Barrier Reef.
Member of the Climate Council this week returned to one of the areas of the Great Barrier Reef that was worst affected by this year's coral bleaching. What they found was far from encouraging.
The Coalition has ramped up the race to fund the Great Barrier Reef's protection. All three major parties have promised hundreds of millions of dollars, but where from, and what will they be spent on?
A combination of factors – pollution, disease and overfishing – is harming corals but scientists have found clues to effective treatment by studying corals' microbiome.
Autumn 2016 was Australia's hottest, beating the previous record set in 2005.
The recent severe bleaching on the Great Barrier Reef has also affected anemones, which provide homes for clownfish.
An estimated one-third of corals have now died in the parts of the Great Barrier Reef hit hardest by bleaching, meaning recovery could take years or even decades.
All mention of Australia has been removed from an international report on climate change on the grounds that it would damage tourism. Here's the evidence.
The Great Barrier Reef is in trouble, and the upcoming election is our last chance to lock in plans to save it.
This summer's record-breaking coral bleaching on the Great Barrier Reef was made 175 times more likely thanks to climate change.
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 Attenborough has issued a call the save the Great Barrier Reef.
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.
Warm seas are causing coral 'bleaching' in one of the world's biodiversity hotspots.
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.