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Coral discoloration at Lizard Island, on the Great Barrier Reef.
Coral discoloration at Lizard Island, on the Great Barrier Reef.
Photo: WWF Survey AUSTRALIA / XL CATLIN SEAVIEW
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Coral discoloration at Lizard Island, on the Great Barrier Reef.
Coral discoloration at Lizard Island, on the Great Barrier Reef.
Photo: WWF Survey AUSTRALIA / XL CATLIN SEAVIEW
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Coral discoloration at the Great Barrier Reef.
Coral discoloration at the Great Barrier Reef.
Photo: WWF Survey AUSTRALIA / XL CATLIN SEAVIEW
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Whitening in the Great Barrier Reef.
Source: CNN
Whitening in the Great Barrier Reef.
Source: CNN
Photo: CNN
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Whitening in the Great Barrier Reef.
Source: CNN
Whitening in the Great Barrier Reef.
Source: CNN
Photo: CNN
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In this photo provided by Greenpeace, activists painted the message "Reef in Danger" on the side of the Chou San coal ship on March 7, 2012 in Gladstone, Australia.
In this photo provided by Greenpeace, activists painted the message "Reef in Danger" on the side of the Chou San coal ship on March 7, 2012 in Gladstone, Australia.
Photo: Handout, Getty Images
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A leopard shark passes in front of him as divers from Sydney Aquarium unveil a Greenpeace banner on March 5, 2012.
A leopard shark passes in front of him as divers from Sydney Aquarium unveil a Greenpeace banner on March 5, 2012.
Photo: GREG WOOD, Getty Images
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A photo taken on September 22, 2014 shows coral on the Great Barrier Reef.
A photo taken on September 22, 2014 shows coral on the Great Barrier Reef.
Photo: WILLIAM WEST, Getty Images
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Protesters hold banners outside the Commonwealth Bank headquarters to say no to the coal expansion on the Great Barrier Reef in Sydney in 2015.
Protesters hold banners outside the Commonwealth Bank headquarters to say no to the coal expansion on the Great Barrier Reef in Sydney in 2015.
Photo: PETER PARKS, Getty Images
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Divers and divers swam over the number three Agincourt Reef from the Quicksilver Eight pontoon on the Great Barrier Reef in 2005.
Divers and divers swam over the number three Agincourt Reef from the Quicksilver Eight pontoon on the Great Barrier Reef in 2005.
Photo: The AGE, Getty Images
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Aerial view of Agincourt reef number three Quicksilver pontoon Eight on the Great Barrier Reef, Queensland, 2005.
Aerial view of Agincourt reef number three Quicksilver pontoon Eight on the Great Barrier Reef, Queensland, 2005.
Photo: The AGE, Getty Images
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Aerial view of Agincourt reef number three Quicksilver pontoon Eight on the Great Barrier Reef, Queensland, 2005.
Aerial view of Agincourt reef number three Quicksilver pontoon Eight on the Great Barrier Reef, Queensland, 2005.
Photo: The AGE, Getty Images
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Snorkelers and divers on the third Argincourt Reef swim with the fish on the Great Barrier Reef in 2005.
Snorkelers and divers on the third Argincourt Reef swim with the fish on the Great Barrier Reef in 2005.
Photo: The AGE, Getty Images
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Katrina Goudkamp Coral videos with the help of Aboriginal trainee Lwayne Boslem as the Great Barrier Reef Marine Park Directorate conducts a survey of the bleaching of the Gladstone Reef at Cooktown in 2006. less
Katrina Goudkamp coral videos with the help of Aboriginal trainee Lwayne Boslem while the Great Barrier Reef Marine Park Authority conducts a study of the bleaching of the Gladstone Reef in Cooktown … more
Photo: The AGE, Getty Images
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Agincourt Reef Three of the Quicksilver Dock Eight on the Great Barrier Reef, Queensland.
Agincourt Reef Three of the Quicksilver Dock Eight on the Great Barrier Reef, Queensland.
Photo: Fairfax Media, Getty Images
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Marine biologist Louise O. Carroll checks the coral of the third Argincourt Reef on the Great Barrier Reef, Queensland, which is protected by shade canvases as part of an experiment conducted by scientists to stop the bleaching caused by the sun's rays. Less
Marine biologist Louise O. Carroll checks the coral of the third Argincourt Reef on the Great Barrier Reef, Queensland, protected by shade fabrics as part of an experiment conducted by scientists … more
Photo: Fairfax Media, Getty Images
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A diver is swimming under the shade cloth, which was placed on the coral reef Agincourt number three of the Quicksilver Eight pontoon on the Great Barrier Reef.
A diver is swimming under the shade cloth, which was placed on the coral reef Agincourt number three of the Quicksilver Eight pontoon on the Great Barrier Reef.
Photo: Fairfax Media, Getty Images
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Marine biologist Louise O. Carroll checks the coral on the third Argincourt reef of the Great Barrier Reef, Queensland, protected by shade canvases as part of an experiment conducted by scientists to stop the bleaching caused by the sun's rays.
Marine biologist Louise O. Carroll checks the coral of the third Argincourt Reef of the Great Barrier Reef, Queensland, protected by shading tissue as part of an experiment conducted by scientists … more
Photo: The AGE, Getty Images
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Divers are ready to enter the waters of the Great Barrier Reef from the Quicksilver pontoon.
Divers are ready to enter the waters of the Great Barrier Reef from the Quicksilver pontoon.
Photo: The AGE, Getty Images
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An undated photo shows that Greenpeace divers are inspecting the Great Barrier Reef, which the environmental group warned in July 1999 that global warming could destroy at the beginning of the next century.
An undated photo shows that Greenpeace divers are inspecting the Great Barrier Reef, which the environmental group warned in July 1999 that global warming could destroy at the beginning of the next century.
Photo: – Getty Images
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An undated file photo shows a Greenpeace diver inspecting corals from the Great Barrier Reef, which they warned that in 1999, global warming could destroy the beginning of the next century.
An undated file photo shows a Greenpeace diver inspecting corals from the Great Barrier Reef, which they warned that in 1999, global warming could destroy the beginning of the next century.
Photo: – Getty Images
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The fish stay close as they fly over the coral of the Great Barrier Reef in Australia. The world-renowned reef has had a problem with coral bleaching.
The fish stay close as they fly over the coral of the Great Barrier Reef in Australia. The world-renowned reef has had a problem with coral bleaching.
Photo: Rick Loomis, Getty Images
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Aerial view of heart reef on Great Barrier Reef at Whitsunday Islands
Aerial view of heart reef on Great Barrier Reef at Whitsunday Islands
Photo: Matt Munro, Matt Munro / Lonely Planet
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Great Barrier Reef shows signs of recovery
Following dire warnings about coral reef loss after massive coral bleaching in 2016 and 2017, Tourism and Events Queensland released a "positive update" on the state of the Great Barrier Reef. "
According to the report released Wednesday by the Queensland State Government, the non-profit research center Reef & Rainforest Research Center has signaled signs of recovery following a milder summer in 2017-18, as well as ## 147 ## 39, to cooperation between science, industry and government. .
Extending over 1430 miles along Queensland's spectacular coastlines, the Great Barrier Reef is the world's longest barrier reef and the first coral reef ecosystem to receive the World Heritage status of the Great Barrier Reef. ; Unesco.
Coral bleaching occurs when corals experience stress from rising water temperatures or poor water quality. In response, the coral ejects a photosynthetic algae called zooxanthellae, which eliminates the distinctive color of the coral. If stress conditions persist, the coral will die, the report says, but if the conditions return to acceptable levels, some corals can reabsorb the substance and recover.
RRRC, in cooperation with the Association of Marine Parks Tourism Operators, has conducted detailed surveys of key tourist sites around the city of Cairns in 2016 and 2017 and indicates that some reefs heavily affected by bleaching show Significant signs of improvement.
According to RRRC General Manager Sheriden Morris, coral bleaching occurs in several stages, ranging from the equivalent of a mild sunburn to coral mortality.
"When a reef is reported as" whitewashed "in the media, it often leaves out a critical detail about the severity of whitening, how deep the bleaching has occurred and whether it will cause permanent damage to the coral on this site. "Morris said in the release, adding that the coral reef" has a significant ability to recover from health effects, such as bleaching episodes ".
Reports that the entire reef is dead due to significant bleaching are "patently false," Morris said. However, he warns that the recovery is "conditioned by the environmental conditions" and that the reef "could undergo new episodes of bleaching while the climate continues to heat up".
The total bleaching impact of 2016, which damaged or destroyed 30% of the shallow coral reef, has not yet been fully evaluated, according to a report released Tuesday by the Nature Research Journal.
Deeper reefs are often considered a safe haven against thermal anomalies such as those encountered in 2016 and 2017, but the report argues that mass-laundering reefs threaten shallow and deep reefs; Even when the colder water rise (which replaces the warmer waters pushed off by the winds) stopped at the end of the summer, the temperatures at depth reached record levels . According to the report, the researchers found that bleached coral colonies reached 131 feet below the surface of the ocean.
News of the recovery comes just two months after RRRC co-hosted the Great Barrier Reef Symposium in Cairns, bringing together more than 300 scientists, engineers and marine tourism representatives from 14 countries. under the threat of warming climates.
In April, the Australian Federal Government announced a $ 379 million (A $ 500 million) grant for the Great Barrier Reef to meet the challenges of climate change, starfish and seawater quality. 'water.
Deloitte Access Economics has estimated the reef at A $ 56 billion in 2017, based on the fact that the reef supports tens of thousands of jobs and contributes A $ 6.4 billion to the reefs. Australian economy.
