Enormous price of UNESCO’s protracted marketing campaign towards Nice Barrier Reef

Value of Nice Barrier Reef Catastrophism

By Professor Peter Ridd, retired reef physicist JCU

Abstract

A man with curly hair and glasses stands with arms crossed, wearing a light blue shirt, in front of a colourful world map. — Reef researcher Professor Peter Ridd

For six a long time there have been predictions of the upcoming demise of the Nice Barrier Reef (GBR). Nonetheless, within the final 5 years, surveys have measured extra coral on the GBR than ever beforehand recorded. This exceptional statistic has occurred regardless of claims that vast quantities of coral have been killed in 5 sizzling water bleaching occasions since 2016. It’s proof that the GBR is in glorious state, however that the science establishments are unreliable.

The query subsequently stays – what has been the financial price of the unjustified catastrophism in regards to the GBR?

This report presents calculations of the prices of GBR catastrophism which might be comparatively simply calculated (see desk 1). The largest price (ca. $800 million) is the influence on the vacationer business as a result of steady dangerous publicity in regards to the GBR. As well as, there are additionally important losses in mining and fisheries. Authorities funding for science, administration and pointless ‘save the reef’ tasks price over $400 million per yr.

Business	Drawback	Value ($ million)
Tourism	Injury to fame	800
Mining	Tasks failing permission	200
Science	Inefficient allocation of science assets	85
Administration	Pointless over-management	50
Fisheries	Fishing closures and restrictions	40
Authorities allocations	Pointless ‘Save the Reef’ tasks	300
TOTAL		*ca.* $1.5 billion/ yr¹

Desk 1: Annual price of unwarranted catastrophism to the Queensland financial system

Along with these tangible financial prices, there are lots of different much less tangible prices related to GBR catastrophism. These embrace direct prices of crimson tape on agriculture, and misplaced alternatives in agriculture as a result of extreme red-tape. The exclusion of those much less tangible prices implies that this report underestimates the true price of GBR catastrophism – presumably by a really giant margin.

There are additionally non-economic, cultural and psychological, prices particularly amongst younger individuals who mistakenly imagine that the GBR is doomed and our society and lifestyle is in charge. In some regards, this final impact is essentially the most critical of all.

Graph showing 'Normalised Coral Cover' over time from 1985 to 2025, highlighting a record high in coral cover around 2025 with a reference to uncertainty in measurements.

Observe: this quantity was rounded to 2 important figures

Determine 1 The common coral cowl on the Nice Barrier Reef as measured by the Australian Institute of Marine Science.³ This information is calculated annually from surveys of about 100 reefs. “Devastating” bleaching occurred in 2016/17/20/22/24.

This report makes an attempt to quantify the prices related to GBR-catastrophism. These embrace expenditure on science establishments, authorities funding to scale back sediment runoff, mining developments which had been cancelled, fishing business closures, and the influence of unfavourable publicity on tourism. Sadly, many different prices are extraordinarily troublesome to quantify and will not be included on this report. These embrace direct prices of red-tape and laws, and alternative prices of financial exercise that didn’t proceed as a result of laws.

Maybe the best prices of GBR catastrophism are intangible – psychological and cultural harm as a result of giant fractions of the inhabitants imagine an iconic a part of Australia has been destroyed by the Australian way-of-life. Many younger individuals are affected by the delusion that the world is on the sting of an environmental precipice, and that is affecting their psychological state. The situation of the GBR is usually cited as being proof for this imminent environmental collapse and is taught in class curricula in Australia, and all over the world. The state of the GBR can be tied to the broader debate about local weather change, and requires western international locations to completely change their vitality manufacturing methods. The prices of this vitality transition into a brand new darkish age will price trillions of {dollars} per yr. However what fraction does bogus info on the GBR contribute to this suicidal vitality ‘transition’. Just like the psychological impacts on youngsters, that is past the scope of this report, which might be restricted to impacts that may be calculated – albeit on events with important uncertainty.

Touch upon uncertainty: Most of the prices calculated on this report are inevitably troublesome to calculate and have giant uncertainty. Because of this, order of magnitude and single-significant-figure accuracy estimations are made. The intent is to find out if the prices are within the order of thousands and thousands, tens of thousands and thousands, a whole bunch of thousands and thousands or billions per yr.

Aerial view of vibrant turquoise waters and coral formations in the ocean.

2 Misplaced Tourism – $800 million/yr

Though predictions of the upcoming demise of the GBR have occurred frequently for the reason that early Nineteen Sixties, the final decade has seen an unprecedented quantity of stories reporting catastrophic harm to the reef as a result of sizzling water bleaching occasions. 5 “catastrophic” occasions have been reported (in 2016, 2017, 2020, 2022 and 2024) and, every time, information has been carried on all the foremost information networks internationally. Most individuals within the western world would have seen dozens of stories stories claiming that large harm has been executed to the GBR. For instance, in April 2016 the Washington Publish headlines learn “After which we wept: Scientists say 93 p.c of the Nice Barrier Reef now bleached”⁴. In October 2020, Germany’s Deutche Welle reported the GBR had misplaced half its coral within the final 20 years⁵. In 2024 The Instances of India reported “For the primary time, excessive bleaching — which is when extra than 90% of coral cowl has bleached — has occurred all over the place on the Nice Barrier Reef.”⁶

The query is to what extent has this month-to-month stream of dangerous information in regards to the GBR affected vacationer numbers.

An try to reply this query was made in a research by the Australia Institute in 2016.⁷ They polled over 1000 folks in every of the UK USA and China, and 1398 folks in Australia, about whether or not they can be much less more likely to go to the GBR if bleaching continued. The report concluded “… Nice Barrier Reef tourism areas are liable to dropping over 1 million guests per yr and 10,000 tourism jobs. 175,000 potential guests could not come to Australia in any respect, risking $1 billion of expenditure per yr.” The Australia Institute research was carried out in 2016, and there have supposedly been 4 catastrophic bleaching occasions recorded since then. As well as, the information that the reef has document quantities of coral has not been extensively publicized. It’s thus possible that these unfavourable attitudes recognized on this research have continued, and the calculated billion-dollar loss has materialised.

Though vacationer numbers in Australia and abroad have grown quickly during the last three a long time, the expansion for the Nice Barrier Reef, one of many pure wonders of the world, has been very restricted (determine 2). Customer numbers had been about1.6 million in 1996, peaked in 2016 simply wanting 2.5 million and has now stabilised after the covid shutdowns at round 2 million in 2025. Customer numbers are the identical now as they had been 20 years in the past – a interval when there was steady dangerous publicity in regards to the GBR.

Line graph depicting annual visitors to the Great Barrier Reef (GBR) from 1995 to 2030, showing fluctuations in visitor numbers, peaking around 2015 and dropping significantly in 2020.

Determine 2 Annual guests (overwhelmingly vacationer) to the GBR from 1994 to 2023.

In distinction to the digital stasis in GBR customer numbers, tourism round Australia has usually flourished. For instance, the variety of worldwide guests to Australia has elevated by about 80% since 2000. One other iconic Australian vacationer attraction, the Nice Ocean Highway and Twelve Apostles, has seen worldwide vacationers rise from round 100,000 in 1991 to round 600, 000 final yr.⁸ Home Customer numbers to Tropical North Queensland grew by round 30% between 2014 and 2024, a interval when GBR visitation modified by round 10%⁹. Worldwide guests to Sydney grew by 40% between 2009 and 2024.¹⁰ The comparatively sluggish development of tourists to the GBR can’t be conclusively attributed to the continual dangerous publicity, and vacationer sights are notoriously affected by passing fashions. Nonetheless, there is no such thing as a extra well-known pure attraction on earth than the GBR, so it might appear extremely possible that customer numbers can be significantly increased if the true good state of the GBR was extra usually recognized.

On this report we are going to presume that the dangerous publicity has lowered customer numbers by round 0.5 million (round 25%). That is lower than the 1 million discount predicted by the Australia Institute survey, and is lower than the expansion that might be anticipated if the GBR had stored up with the dramatic development in tourism in lots of different components of Australia. A 0.5 million loss in vacationer numbers should subsequently be thought-about as a lower-bound estimate. As a way to make estimations of vacationer quantity loss with decrease uncertainty, it might be essential to undertake main surveys of vacationers and potential vacationers to gauge how their journey intentions have been affected by the dangerous publicity.

A discount in vacationer numbers of between 0.5 million guests, would characterize an financial lack of round 0.8 billion {dollars} per yr utilizing the Australia Institute’s¹¹ estimate for the worth of GBR visitation of not less than 3.3 billion per yr (in 2015). Different information put the worth of GBR tourism at $9 billion per yr¹² which might yield a lack of $2.2 billion per yr if vacationer numbers are depressed by 0.5 million (25%). Once more, being conservative, this report will use the decrease determine of $800 million.

3.0 Mining ($200 Million/yr)

The potential influence of mining and oil drilling on the GBR was the principle driver for the declaration of the GBR as a nationwide park in 1975¹³. In these days there have been strikes to drill for oil in marine waters adjoining to the reef and to extract calcium carbonate (historic lifeless coral) immediately from coral reefs for cement manufacturing. The risk to the reef was direct, and really near the reef itself. The proposition of such direct mining and oil drilling was opposed by many on all aspect of politics. Notable amongst these was Sir Garfield Barwick, legal professional common underneath Liberal Prime Minister Sir Robert Menzies, who grew to become inaugural president of the Australian Conservation Basis.

These days, there are lots of claims that mining will harm the GBR¹⁴, however all of them depend on extremely oblique and distant impacts of doubtful scientific benefit. Of those the impact on local weather of carbon dioxide emissions from burning coal mined adjoining to the reef is greatest recognized and is usually invoked as an argument to ban future mining of coal¹⁵. These arguments have helped trigger delays and authorized prices for the Adani Carmichael Mine, and are ongoing at different proposed mines in Queensland, equivalent to Whitehaven Coal’s Winchester South mine within the Bowen Basin¹⁶. Nonetheless, the associated fee related to this authorized motion is troublesome to calculate and won’t be included on this report.

There’s one unequivocal case the place a coal mine has didn’t proceed as a result of issues about its influence on the GBR. The Styx Coal Undertaking about 150 km north of Rockhampton, didn’t get regulatory permission from the Federal authorities. Surroundings Minister Tanya Plibersek refused permission stating “the mine is an open-cut coal mine lower than 10km from the Nice Barrier Reef, and the danger of air pollution and irreversible harm to the reef may be very actual.”¹⁷ The truth is, the mine is 10 km from the headwaters of a tidal creek which flows into Broad Sound, a big and really muddy bay. The closest coral on the Nice Barrier Reef is 150 km offshore. How the mine may have any important affect on the GBR was not defined. The cancellation of this mine was not justifiable.

The Styx Coal Undertaking, if it had been authorised, would have produced roughly 3 million tonnes of coal per yr and earned $4.4 billion over the 20 yr mine life¹⁸. The associated fee per yr is thus round $200 million. It stays to be seen if related reasoning used to cease the Styx Coal Undertaking might be used sooner or later towards different Queensland coal mines, most of that are in GBR river catchments. The precedent has been set, and a sword-of-Damocles hangs over any future mining growth between the Nice Diving Vary and the GBR.

4 Restriction of GBR of Fishing Business ($40 Million per yr)

The business fishing business within the GBR waters has been topic to main restrictions. Reef fishery equivalent to coral trout had been restricted by zoning modifications within the early 2000s, and there have been a succession of fishing licence cancellations and buy-backs. As well as, non-reef fisheries, equivalent to prawns have additionally been restricted as these species are caught within the GBR marine park. Extra lately, species that stay nowhere close to the reef, equivalent to barramundi have been restricted or closed. Barramundi are caught virtually solely in coastal creeks and rivers. This net-fishery is presently being closed.

Two men holding large red fish while standing on a boat in the ocean. — Fish shares are plentiful on the reef which magnetize sport fishermen from throughout Australia and the world

Within the following estimations, fisheries information from the Australian Bureau of Agricultural and Useful resource Economics and Sciences¹⁹ is used to find out the fisheries misplaced as a result of restrictions particular to the proximity to the GBR. It concentrates on simply an important species and is subsequently almost certainly to be a major under-estimate of the entire price.

Barramundi: All gill-netting for Barramundi will change into unlawful on the east coast of Queensland in 2027. As well as, many of the Queensland Gulf of Carpentaria coast can even be closed as a part of the package deal that the federal authorities agreed with UNESCO to forestall the endangered itemizing of the GBR. The Barramundi fishery is value round $10 million annually.

Spanish Mackerel: Spanish Mackerel fishing was lowered from 600 tonnes right down to 165 tonnes, representing a roughly $5 million discount in worth.

Coral Trout: Catch of coral trout was restricted to scale back catch by about 50% round 2005. This fishery is presently value about $20 million a yr. The discount in catch is thus roughly $20 million.

Prawns. The full worth of prawns caught in Queensland is round $100 million per yr. Assuming that 25% of prawns in Queensland are caught on the GBR coast, and the catch has been roughly halved as a result of rezoning of fishing waters and different restrictions, the worth discount is round $10 million per yr.

Complete misplaced income in business fisheries: roughly $40 million per yr.

5 Wasted government funding

Earlier than the Nineteen Sixties there have been no environmental issues in regards to the Nice Barrier Reef, and authorities funding for the reef was zero. Nonetheless, scientific research began in earnest within the 1960 when a handful of scientists at College of Queensland, and James Cook dinner College had been appointed. It isn’t a coincidence that reef catastrophism began shortly afterwards. Scientists found crown of thorns starfish plagues which had been “devastating” the reef. By the Nineteen Seventies it was frequently predicted that the reef may very well be misplaced inside a decade. In the present day there are lots of government-funded organisations, and particular person scientists and managers who’ve a monetary stake in GBR catastrophism.

5.1 Funding to ‘Save the GBR’ ($300 million/yr)

The federal Division of Local weather Change, Power, the Surroundings and Water has acknowledged that for the interval 2014 to 2030, $5 billion has been spent or allotted as an “funding within the Reef” to scale back strain from local weather change, agriculture and fisheries²⁰. That is roughly $300 million yr.

The outcomes of this expenditure is minimal, and was summarised in a letter to UNESCO by the Division of Local weather Change, Power, the Surroundings and Water, in February 2024. On this letter, Minister Plibersek was giving proof for why the GBR ought to NOT be listed as endangered. The primary achievement of the Federal authorities was acknowledged to have been lowering the sediment and dissolved inorganic nitrogen (DIN) delivered to the GBR nationwide park, coming from rivers (since 2014). It was acknowledged 140000 tonnes of sediment 555 tonnes of DIN had been prevented from coming into the marine park as a result of authorities measures.

These figures could appear spectacular, and clearly had been meant to appear spectacular in Plibersek’s letter, however are in reality completely insignificant. They reveal a whole lack of appreciation for the massive scale of the GBR. The web sediment discharge from rivers flowing to the GBR is roughly 10 million tonnes per yr²¹ or 100 million tonnes since 2014. Thus, the sediment prevented from coming into the waters of the marine park has been lowered by 0.14%. Even that is an underestimate as cyclones resuspend far better portions sediment from the seabed than come down rivers. It has been estimated that Cyclone Yasi possible resuspended 500 million tonnes.

The discount in nitrogen to the lagoon is equally negligible. It’s estimated that about 10000 tonnes of DIN flows from rivers annually²². Thus, the discount in export of DIN since 2014 is barely 0.5 p.c. Once more, this drastically over-estimates the influence of this discount in DIN as there’s 100 occasions extra nitrogen biking between the seabed and water within the GBR lagoon, than comes down all of the rivers. The influence is thus a change of 0.005%,

Provided that these two achievements had been the principle speaking factors of the letter explaining to UNESCO why the Australian authorities had made nice strides to guard the GBR, and thus the reef shouldn’t be declared by UNESCO as endangered, it implies that different achievements had been much more inconsequential. It might thus be concluded that the complete $5 billion allotted and already spent on packages to ‘save the reef’ have made no distinction to the reef. Even when these packages had reached the unnatural state the place ALL the sediment and DIN flowing down the rivers was prevented, it might nonetheless have a negligible influence on the reef as a result of the wave resuspension of sediment and vitamins that has been deposited into the marine system, over hundreds of years, is much extra necessary that sediment and vitamins coming into from rivers.²³ The $5 billion expenditure has thus made a negligible distinction to a difficulty that was negligible.

5.2 Funding for Nice Barrier Reef administration. ($50 million)

The primary administration organisation for the GBR marine park is the Nice Barrier Reef Marine Park Authority (GBRMPA). It’s liable for the GBR itself, and likewise the ocean between the GBR and the coast. This space, often called the GBR lagoon is between 30 and 150 kilometre huge alongside the complete 2000 km size of the GBR. Altogether, GBRPMA management an space related in measurement to Victoria, or Germany. The inshore boundary of the marine park is often the tidal low water mark on the coast. Along with being liable for the marine park, GBRPMA takes nice curiosity in all of the river catchments east of the Nice Dividing Vary. It’s because it’s claimed that sediment, pesticides and vitamins working into the GBR lagoon are impacting the GBR.²⁴

GBRMPA is liable for licensing vacationer operators that take guests to the reef. Most vacationer operations happen on a handful of reefs from the Cairns and Whitsundays area.

GBRMPA frequently makes public statements in regards to the supposedly perilous way forward for the reef and states that bleaching from sizzling water occasions from local weather change is essentially the most critical risk²⁵, adopted by runoff from agriculture.

The precise effort to handle the GBR may be very minimal and it is extremely uncommon to ever see a GBRMPA officer on the water. Provided that the GBR is in excellent situation and is generally very distant, it’s uncertain that the majority of GBRMPA’s exercise is having any impact on the reef. The truth that the reef survived completely properly earlier than GBRMPA was shaped is a sign that it doesn’t must do far more than forestall main exercise equivalent to mining or oil drilling, that are unlawful anyway. Some packages, equivalent to these lowering anchor harm on particular person reefs, have actually been worthwhile though this was solely ever an issue on a really small space of the reef.

However lots of its packages are an excellent waste of cash. For instance, it has an Indigenous Technique which “units out how the Authority can work in partnership with Conventional House owners to mix their hundreds of years’ experience in Reef administration with trendy Marine Park administration instruments to assist hold Sea Nation heritage sturdy, protected and wholesome.” In actuality, western science has already documented the information from indigenous folks. Thus, the indigenous information can already be utilized. This program is akin to the preposterous concept that Einsteins descendants must be funded on any matter of the theoretical physics that Einstein found.

Each customer on business vessels to the GBR pays an “environmental administration cost” of round $10 per individual which is are utilized on to the administration of the Marine Park.²⁶ There are within the order of two million guests annually so this cost is round $20 million per yr.

GBRMPA’s funds is roughly $120 million annually.²⁷ Though there’s a want for some administration of the nationwide park, it might appear that GBRMPA is a bloated paperwork that would simply be lowered. It’s recommended that halving the funds would don’t have any deleterious influence on the administration on the reef. This might produce a saving of round 50 million per yr.

5.3 Funding for Great Barrier Reef Science Establishments ($85 Million)

Not like most Australian ecosystems, a substantial quantity of funding is devoted particularly to learning the GBR. Most of this analysis relies on the proposition that the GBR is endangered and desires ‘saving’. This proposition is extremely questionable given the current state of the GBR having document quantities of coral. The scientific expenditure on the GBR may thus be spent extra productively in different areas.

Numerous government-funded establishments, that perform science, have an curiosity within the GBR. This report will solely analyse expenditure throughout the college sector, the Australian Institute of Marine Science and at CSIRO.

5.3.1 College Analysis

Most universities on the east coast of Australia have teachers who declare to work on GBR-related science. Queensland universities have the very best numbers. For instance, James Cook dinner College, College of Queensland and Griffith College record round 70, 70 and 50 employees respectively the place the analysis pursuits embrace the GBR. It is going to be assumed right here that an order of magnitude estimate of the variety of teachers with an curiosity within the GBR in the entire of Australia is about 500 teachers. It’s exhausting to gauge how a lot of their time they spend on this work. Most teachers spend round a 3rd of their time on analysis, however usually have a variety of pursuits. If it was assumed that these 500 teachers spent 10% of their time on GBR analysis, had a mean wage of $120K with an on-cost multiplier of three, then the price of this analysis is roughly $20 million. This can be a modest price in comparison with a number of the different prices listed on this report. There are very giant uncertainties on this calculation, however it’s nonetheless a helpful order-of-magnitude estimation.

5.3.2 CSIRO

The CSIRO has 58 analysis scientists who’re listed as having an curiosity within the GBR.²⁸ Assuming the typical wage is round 150k with an on-cost multiplier of three, and that these 58 employees spend half their time on GBR work, the price of their work is round $15 million.

5.3.3 Australian Institute of Marine Science

The Australian Institute of Marine science (AIMS), which relies in Townsville, was arrange in 1972 with the principle function to review the GBR. It’s the greatest single establishment with an curiosity within the GBR. The AIMS funds is roughly $100 million yearly,²⁹ though about 20% of its employees are primarily based in West Australia the place AIMS has an curiosity in coral reefs of Western and Northern Australia.

The writer labored at AIMS from 1984 to 1988 and in these days the motivation for analysis had little to do with ‘saving the reef’. It was largely primary science to doc the GBR, and to seek out out in regards to the organic, chemical and bodily processes that operated. Most of AIMS analysis is now targeted on ‘saving the reef’ from local weather and different anthropogenic threats.

Nonetheless, a number of the AIMS work is extraordinarily helpful such because the long-term monitoring of coral that began in 1985. It’s this information which demonstrates that there’s little to fret about for the way forward for the reef.

The AIMS funds annually is round $100 million and it is going to be assumed for this report that round 50% of the work has little scientific worth, i.e $50 million.

5.3.4 Complete: all science analysis organisations.

The order-of-magnitude estimate of the entire price of the science organisations, the place there’s little return on funding is round $85 million. These funds may very well be much better spent on analysis that’s extra more likely to be commercially helpful or that helps remedy a real environmental drawback.