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NEWS
Coral reefs at risk of extinction unless global warming effects are curtailed, warns Unesco
POSTED 04 Jul 2017 . BY Tom Anstey
The world's coral reefs are worth an estimated US$1tn in social, cultural and economic value Credit: Shutterstock.com
Unesco’s World Heritage Centre has said that its listed reefs are likely to disappear by the end of the century unless global CO2 output can be reduced drastically.

Over the last three years, 21 of 29 World Heritage-listed reefs have suffered from severe heat stress, with warming waters devastating the natural wonders, causing usually colorful corals to become white and translucent – a process known as coral bleaching.

According a new report by Unesco, the social, cultural and economic value of the world’s coral reefs has been estimated at US$1tn (€881bn, £774bn) annually. The report also says that climate-related loss of reef ecosystems will total US$500bn (€440.5bn, £387bn) by 2100, with economies reliant on reefs severely affected.

“All properties will experience annual severe bleaching, and thus will cease to host functioning coral reef ecosystems by 2100 unless CO2 emissions are reduced,” said the report.

“Delivering on the Paris Agreement target of holding the increase in the global average temperature to well below 2°C above pre-industrial levels and to pursue efforts to limit the temperature increase to 1.5°C offers the only opportunity to prevent coral reef decline globally.”

In more recent times a separate study predicted that the Great Barrier Reef in Australia would lose an estimated AU$1bn (£777m, €733m, £618m) in annual tourist revenue should bleaching continue at its current rates. At the Great Barrier Reef, 93 per cent of its coral was affected by the bleaching process last year, with 22 per cent dying as a result.

“The 29 globally significant coral reefs on Unesco’s World Heritage List are facing existential threats, and their loss would be devastating ecologically and economically,” said Dr Mechtild Rossler, director of the World Heritage Centre. “These rainforests of the sea protect coastal communities from flooding and erosion, sustain fishing and tourism businesses, and host a stunning array of marine life.”

Coral bleaching was first recorded in 1983, but the past three years – the hottest globally on record – have been particularly damaging, with 72 per cent of World Heritage-listed reefs affected.

To download the full report, Impacts of Climate Change on World Heritage Coral Reefs, click here.
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Jobs   News   Products   Magazine
NEWS
Coral reefs at risk of extinction unless global warming effects are curtailed, warns Unesco
POSTED 04 Jul 2017 . BY Tom Anstey
The world's coral reefs are worth an estimated US$1tn in social, cultural and economic value Credit: Shutterstock.com
Unesco’s World Heritage Centre has said that its listed reefs are likely to disappear by the end of the century unless global CO2 output can be reduced drastically.

Over the last three years, 21 of 29 World Heritage-listed reefs have suffered from severe heat stress, with warming waters devastating the natural wonders, causing usually colorful corals to become white and translucent – a process known as coral bleaching.

According a new report by Unesco, the social, cultural and economic value of the world’s coral reefs has been estimated at US$1tn (€881bn, £774bn) annually. The report also says that climate-related loss of reef ecosystems will total US$500bn (€440.5bn, £387bn) by 2100, with economies reliant on reefs severely affected.

“All properties will experience annual severe bleaching, and thus will cease to host functioning coral reef ecosystems by 2100 unless CO2 emissions are reduced,” said the report.

“Delivering on the Paris Agreement target of holding the increase in the global average temperature to well below 2°C above pre-industrial levels and to pursue efforts to limit the temperature increase to 1.5°C offers the only opportunity to prevent coral reef decline globally.”

In more recent times a separate study predicted that the Great Barrier Reef in Australia would lose an estimated AU$1bn (£777m, €733m, £618m) in annual tourist revenue should bleaching continue at its current rates. At the Great Barrier Reef, 93 per cent of its coral was affected by the bleaching process last year, with 22 per cent dying as a result.

“The 29 globally significant coral reefs on Unesco’s World Heritage List are facing existential threats, and their loss would be devastating ecologically and economically,” said Dr Mechtild Rossler, director of the World Heritage Centre. “These rainforests of the sea protect coastal communities from flooding and erosion, sustain fishing and tourism businesses, and host a stunning array of marine life.”

Coral bleaching was first recorded in 1983, but the past three years – the hottest globally on record – have been particularly damaging, with 72 per cent of World Heritage-listed reefs affected.

To download the full report, Impacts of Climate Change on World Heritage Coral Reefs, click here.
Sign up here to get the Attractions Management weekly ezine and every issue of Attractions Management magazine free on digital.
RELATED STORIES
Peru addresses Machu Picchu overcrowding with permit system


The Peruvian government has introduced a permit system for Machu Picchu in an attempt to better control footfall at the Unesco World Heritage site.
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New recommendations have been laid out for Lumbini – the birthplace of Lord Buddha – following efforts by Unesco to strengthen conservation and management of the World Heritage site.
Great Barrier Reef bleaching could wash away one million visitors, says report


With warming waters devastating parts of the Great Barrier Reef, the Australia Institute – a Canberra-based think tank – has predicted more than a million less people will visit the natural wonder should coral bleaching continue.
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Proslide Tech Inc - ProSlide | Atlantis Dubai
More videos:
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CATALOGUE GALLERY
+ More catalogues  
DIRECTORY
+ More directory  
DIARY

 

07-09 Jun 2021

Renewable Plastics connect 2021

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The Venetian Macao, Macao, China
+ More diary  
 


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