Great Barrier Reef worth £33bn to Australia and supports too many jobs to be allowed to die, says new study

The “indirect or non-use” value – people that have not yet visited the reef but know it exists – was estimated at AU$24 billion, with recreational users such as boaters making up the rest.

The study, based on six months of analysis, comes as the reef has suffered an unprecedented second straight year of coral bleaching due to warming sea temperatures linked to climate change.

It is also under pressure from farming run-off, development and the crown-of-thorns starfish, with the problems compounded this year by a powerful cyclone pummelling the area.

Great Barrier Reef Foundation director Steve Sargent said the study showed that no single Australian asset contributed as much to international perceptions of “Brand Australia”.  “At $56 billion, the reef is valued at more than 12 Sydney Opera Houses,” he said.

Commenting in the report published on Monday, US presidential candidate turned conservationist Al Gore said the study was a “much needed, holistic view of the incredible economic value and opportunities provided by the Great Barrier Reef”.

“Any failure to protect this indispensable natural resource would have profound impacts not only to Australia but around the world,” he added.

‘Priceless and irreplaceable’

The study included a survey of 1,500 Australian and international respondents from 10 countries that found people value the reef for a range of reasons – due to its importance for tourism but also the belief that Australia would not be the same without it.

Lead author, Deloitte Access’s John O’Mahony, said it was clear the reef was “priceless and irreplaceable”.

“But we’ve been able to look at it as an ‘asset’ that has incredible value on multiple fronts – from its biodiversity and job creating potential to its support for critical industries and standing among international visitors to Australia,” he said.

Australia last month hosted a summit of more than 70 of the world’s leading marine experts to work on a blueprint on how best to respond to the threats facing the reef.

Key to the talks was the need to slash greenhouse gas emissions to prevent warming sea temperatures.

Canberra in 2015 narrowly avoided Unesco putting the reef on its endangered list, and has committed more than AU$2billion to protect it over the next decade.

But it has been criticised for backing a huge coal project by Indian mining giant Adani near the reef, which environmentalists warn would harm the natural wonder.

Environment Minister Josh Frydenberg insisted protecting the reef was a priority.

“It is critical for reefs worldwide, including the Great Barrier Reef, that international efforts to reduce greenhouse gas emissions are effective,” he said in response to the study.

“Australia is taking strong action to address the global threat of climate change having ratified the Paris Agreement which will see Australia reduce its emissions by 26 to 28 percent on 2005.”