Posted on May 11, 2022
Australia says most Great Barrier Reef coral studied this year was bleached
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https://www.npr.org/2022/05/11/ [login to see] /australia-says-most-great-barrier-reef-coral-studied-this-year-was-bleached
More than 90% of Great Barrier Reef coral surveyed this year was bleached in the fourth such mass event in seven years in the world's largest coral reef ecosystem, Australian government scientists said.
Bleaching is caused by global warming, but this is the reef's first bleaching event during a La Niña weather pattern, which is associated with cooler Pacific Ocean temperatures, the Great Barrier Reef Marine Authority said in its an annual report released late Tuesday that found 91% of the areas surveyed were affected.
Bleaching in 2016, 2017 and 2020 damaged two-thirds of the coral in the famed reef off Australia's eastern coast.
Coral bleaches as a heat stress response and scientists hope most of the coral will recover from the current event, said David Wachenfeld, chief scientist at the authority, which manages the reef ecosystem.
More than 90% of Great Barrier Reef coral surveyed this year was bleached in the fourth such mass event in seven years in the world's largest coral reef ecosystem, Australian government scientists said.
Bleaching is caused by global warming, but this is the reef's first bleaching event during a La Niña weather pattern, which is associated with cooler Pacific Ocean temperatures, the Great Barrier Reef Marine Authority said in its an annual report released late Tuesday that found 91% of the areas surveyed were affected.
Bleaching in 2016, 2017 and 2020 damaged two-thirds of the coral in the famed reef off Australia's eastern coast.
Coral bleaches as a heat stress response and scientists hope most of the coral will recover from the current event, said David Wachenfeld, chief scientist at the authority, which manages the reef ecosystem.
Australia says most Great Barrier Reef coral studied this year was bleached
Posted from npr.org
Australia
Climate Change
Edited 2 y ago
Posted 2 y ago
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PO1 William "Chip" Nagel
..."A United Nations delegation visited the reef in March to assess whether the reef's World Heritage listing should be downgraded due to the ravages of climate change.
In July last year, Australia garnered enough international support to defer an attempt by UNESCO, the United Nations' cultural organization, to downgrade the reef's World Heritage status to "in danger" because of damage caused by climate change.
But the question will be back on the World Heritage Committee's agenda at its annual meeting next month."
..."A United Nations delegation visited the reef in March to assess whether the reef's World Heritage listing should be downgraded due to the ravages of climate change.
In July last year, Australia garnered enough international support to defer an attempt by UNESCO, the United Nations' cultural organization, to downgrade the reef's World Heritage status to "in danger" because of damage caused by climate change.
But the question will be back on the World Heritage Committee's agenda at its annual meeting next month."
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