Australia's Barrier reef not as fragile as once thought

It has inbuilt recovery from damage mechanisms

About 100 coral reefs within the Great Barrier Reef have been identified as having particular resilience that may help corals recover from bleaching and other threats.

The hardy "robust source reefs" – about 112 in number or about 3 per cent of total coverage – were found to be in cooler, outer reefs.

Their location helped shield them from the recent back-to-back annual bleaching that had devastated corals, the Australian and British researchers found.

Their proximity to stronger ocean currents than inland reefs also meant their annual spawning events could disperse coral larvae over a large region, fostering recovery after bleaching or cyclones.

A third characteristic was a relative absence of crown-of-thorns starfish, lowering their susceptibility to that threat.
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Peter Mumby, one of the authors of the reef paper appearing on Wednesday in PLOS Biology, said a single coral spawning event from the robust sites could "almost reach half the reefs of the Great Barrier Reef".

"These sites are important ecologically, providing some of the backbone of the reef," said Professor Mumby, who is based at the University of Queensland's School of Biological Sciences.

"We are trying to uncover the natural life-support system of the reef, so we can then support it," he said, adding: "The reef is much better connected than we thought."

The importance of supporting natural recovery processes would likely increase in the future "as climate change reduces the average size of coral populations and the need for recolonisation becomes more frequent," the paper said.

But with most of the robust sites clustered off Mackay in the central-south region of the Great Barrier Reef, any relative resilience might be of little benefit to more distant regions, such as the northern end.

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NOAA Lets Politics Corrupt Its Science

Internal emails obtained through a Freedom of Information Act (FOIA) request by JunkScience.com website publisher and attorney Steven Milloy reveal NOAA media campaigns to politicize unsubstantiated CO2-caused ocean ecosystem impacts along with its "evil twin" climate influences.

A communication from NOAA’s Ocean Acidification Director Libby Jewett lauds a previous "great job" by staff member Madelyn Applebaum in writing "two widely-praised and referenced op-eds." She notes that the first one on space weather was quickly bumped up to Obama White House Science Director John Holdren.

The second article addressing ocean acidification (OA) which was developed "literally overnight" was also immediately approved by Holdren. It appeared in an Oct. 15, 2015 New York Times article titled "Our Deadened, Carbon-Soaked Seas."

Although written by Applebaum, the co-authorship was attributed to NOAA’s Chief Scientist Richard Spinrod and his U.K. counterpart Ian Boyd.

Jewett wrote that Boyd was "very interested in doing another op-ed on ocean acidification, and our team hopes that Madelyn can be assigned to develop it." She continued, "Ideally, the op-ed could appear in the fall prior to the second ocean conference at which Secretary Kerry and ocean acidification will be prominent. We want visibility for NOAA’s pioneering global leadership to be prominent too!"

Whereas later emails show that The New York Times initially rejected the proposed op-ed for its U.S. print edition, NOAA staff achieved success getting it placed in the newspaper’s The New York Times International print edition and its online NYTimes.com. Again attributed to co-authorship by Spinrod and Boyd, it was ominously titled, "In a High CO2 World, Dangerous Waters Ahead."

Research ecologist Shallin Busch at NOAA’s Fisheries Service insisted that the op-ed exaggerated the ocean acidification problem. Writing to Madelyn Applebaum she said " . . . the study of the biological impacts of OA is so young that we don’t have any data sets that show a direct effect of OA on population health or trajectory."

Busch later suggested in another e-mail, "It might be good to mention that some species will be harmed by ocean acidification, some will benefit, and some won’t respond at all!"

A Woods Hole Oceanographic Institution study that I reported in my April 10, 2012 Forbes.com column, "Is Your SUV Killing Ocean Coral Reefs?" agrees with this observation. Their findings concluded that the world’s marine biota are "more resistant to ocean acidification than suggested by pessimistic predictions identifying ocean acidification as a major threat to marine biodiversity."

Higher seawater carbonation levels and temperatures actually have positive effects upon many marine species. Included are shell-building "calcifers" which are observed to grow faster over natural volcanic CO2 vents.

Most of the significantly negative responses occurred at atmospheric concentrations exceeding 2,000 parts per million (ppm). This is five times higher than the current 400 ppm today, and about three times higher than even the alarmist U.N.’s IPCC predicts will occur by end of this century.

No one should doubt that the health of ocean ecosystems must be of vital concern. For exactly this same reason we must be able to place trust in a non-political NOAA to get both its facts and messaging straight.

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Legal battle in Australia: James Cook Univer­sity trying to muzzle critic of coral reef alarmism

Outspoken James Cook Univer­sity professor Peter Ridd has taken Federal Court action claiming conflict of interest, apprehended bias and actual bias against vice-chancellor Sandra Harding.

Professor Ridd wants JCU to drop a misconduct investigation launched following his interview with Alan Jones on Sky News on August 1 in which he criticised the quality of Great Barrier Reef science.

In the interview, he said research findings by major institutions could not be trusted. “We can no longer trust the scientific organisations like the Australian Institute of Marine Science, even things like the ARC Centre of Excellence for Coral Reef Studies.

“The science is coming out not properly checked, tested or replicated, and this is a great shame.”

JCU responded in late August by launching a formal investigation for misconduct which could result in Professor Ridd’s employment being terminated.

Professor Ridd engaged legal counsel, with new accusations being made by JCU and Federal Court action being lodged by him.

JCU has said Professor Ridd’s comments were “not in the collegial and academic spirit of the search for knowledge, understanding and truth”. It said his comments had denigrated AIMS and the ARC Centre and were “not respectful and courteous”.

In letters lodged with the court, JCU said Professor Ridd’s comments could damage the reputation of AIMS and the university’s relationship with it.

In a letter to JCU on September 7, Professor Ridd’s legal team, ­Mahoneys, called on JCU to drop the case. They said the university suffered a conflict of interest in its investigation.

“The vice-chancellor is a council member (akin to a director) of the Australian Institute of Marine Science,” Mahoneys said. “The vice-chancellor is in a position of conflict between her duties and ­office to the AIMS and to bringing an impartial mind to a decision on the allegations (against Professor Ridd).”

JCU responded on September 19 that it was “not satisfied that there has been no serious misconduct or that the allegations are unsubstantiated”. It said Professor Ridd “must not disclose or discuss these matters with the media or in any other public forum”.

Mahoneys responded on September 27, repeating concerns about conflict of interest: “There are only two conclusions our ­client can reach as to why the complaint is continuing to be prosecuted: incompetence or act­ual bias, neither of which is satisfactory or tolerable to our client.”

JCU then engaged law firm Clayton Utz, which on October 6 wrote to Mahoneys to say: “The matters you have raised are not matters that prevent JCU from ­addressing your client’s conduct and JCU’s expectations of your client as a JCU employee.”

Mahoneys responded on ­October 13 that the Utz response was “evasive and inadequate”.

On October 17, Clayton Utz wrote “further allegations and concerns” had been raised against Professor Ridd. “These matters ­related to allegations of similar conduct and/or a pattern of insubordination and denigration of the university,” Clayton Utz wrote. It rejected the allegation of bias, ­apprehended bias, or inability of the officers of the university to ­address Professor Ridd’s conduct.

JCU again wrote to Professor Ridd on October 23 highlighting comments made to Jones. In the Jones interview, Professor Ridd said: “I think that most of the scientists who are pushing out this stuff — they genuinely believe that there are problems with the reef; I just don’t think they’re very objective about the science they do, I think they’re emotionally ­attached to their subject.” In its letter, JCU said it “is not satisfied that the principles of academic freedom excuse or justify your comments”.

The university said it did not accept a conflict of interest or apprehended bias existed.

On November 7, Mahoneys said “new evidence” was “entirely separate”. “The revised offending conduct cannot reasonably have had any effect on the relationship of trust and confidence between employer and employee, that is, of course, unless the employer was hypersensitive in the extreme and determined to find slight in every action,” Mahoneys responded.

Professor Ridd said in correspondence to The Australian he hoped the court action would “draw attention to the quality ­assurance problems in science and the obligation of universities in general to genuinely foster debate, argument and the clash of ideas”.

“I think it is right to challenge our science institutions about whether their work is reliable and trustworthy,” he said.

A JCU spokesman said “it is not appropriate to comment on confidential matters’’.

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Great Barrier Reef recovering from coral bleaching

The Greenie panic was for nothing, as usual.  Julian Tomlinson didn't go to journalism school so he tells it like it is below -- supported by extensive video evidence

NEWS of the Great Barrier Reef’s demise have indeed appeared to be premature – as predicted. Cairns-based environmental science body, Tropical Water Quality Hub, released exciting news this month in an email titled: Signs of recovery on bleached coral reefs.

This is no surprise to reef operators, climate change sceptics and scientists who urged everyone not to believe the hype about the Reef’s certain doom.

The TWQH said researchers from the Australian Institute of Marine Science went back to 14 reefs between Townsville and Cairns they surveyed at the height of this year’s bleaching event and saw “significant” recovery. “The majority of coral colonies on the inshore reefs have regained their colour and some even appear to have developing eggs in their tissues,” said project lead Dr Line Bay.

This evidence is directly in line with the views of James Cook University’s Professor Peter Ridd who said this year that corals were experts at adapting to changing environments and that they would recover – as they had done in the past.

But still, Prof Ridd was dismissed by reef doom merchants and has even been threatened with disciplinary action by JCU because of his contrary views. One hopes the university will now apologise unreservedly to Prof Ridd for its treatment of him.  All he did was urge his colleagues to not take such an absolute and alarmist view of Reef health.

Hinchinbrook MP, Andrew Cripps, believes Ridd’s treatment was so bad that he raised it in state parliament this month and suggested JCU’s administrative procedures should be reviewed. “I have been offered some explanations for the actions taken by JCU against Peter Ridd, but they were most unsatisfactory to the point of being feeble,” said Mr Cripps.

Marine biologist Walter Starck has spent a lifetime studying marine ecosystems and made the same observations as Ridd in a Quadrant magazine article he wrote last year.

Starck is considered by naysayers as a scientific fringe dweller but anyone who challenges the alarmists is always going to be ridiculed and have their credibility questioned.

While the TWQH researchers say it’s still early days, news of coral recovery is fantastic for our tourism operators.

Cairns reef dive company, Spirit of Freedom, has also given activists reason to stand down. Just last month, the company released a video of Ribbon Reefs, Lizard Island and Osprey Reef.  Shot by Stuart Ireland of Calypso Reef Imagery, it reveals a truly spectacular undersea paradise.

Tourists also appear on the video saying they can’t believe how beautiful the Reef is after what they’d been told about its imminent demise.

Check it out for yourself at https://vimeo.com/229457310.

I can’t wait for Midnight Oil to come back to spread the good news and for my Facebook feed to be cluttered with ecstatic posts from The Greens and GetUp!

Somehow, I think I’ll be waiting a long time. They’ll still say we must stop human-caused carbon emissions to ensure the recovery continues.

But environmental scientist Bjorn Lomborg has backed opponents of attempts to force us all to toe the man-made global warming line.

In The Australian this week he wrote that if every country honoured its emissions promises, 60 gigatonnes of carbon would be stopped from entering the atmosphere… whereas 6000 gigatonnes needs to be stopped to keep temperature rises below 2C.

Again, all the pain of high power prices and being lectured to and attacked by fanatics is for nought.

Another recent study has backed critics of laboratory tests claiming ocean acidification caused by CO2 emissions is a coral killer. The critics say the lab tests expose corals to increased CO2 too quickly for the organisms to adapt, therefore exaggerating the results.

Now, in the Nature Communications journal, researchers say they have shown this is the case, and that coral in the wild is able to adapt to changes in ocean composition when they happen gradually.

With all this evidence, we should all – especially politicians and the media – be taking the reef alarmists with a grain of salt and reject claims that we’re all environmental vandals.

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Despite Greenie prophecies of doom, the Great Barrier Reef is bouncing back from its recent stresses

Researchers have observed signs of new life in some of the worst affected areas of coral bleaching of Australia's Great Barrier Reef.

The corals of the Great Barrier Reef have undergone two successive bleaching events, in 2016 and earlier this year, raising experts' concerns about the capacity for reefs to survive under global-warming induced events.

But after a coral reef survey in September, researchers found tiny sacs of white eggs in bleached coral reefs, raising new hope for the reefs after the recent bleaching events, which affected close to two thirds of the Great Barrier Reef.

The tiny coral eggs were found in coral reefs between Townsville and Cairns, by researchers with the Australian Institute of Marine Science (AIMS).

Dr Neal Cantin and project leader Dr Line Bay, who are part of the coral bleaching response team, were surprised to discover early signs of new life.

Dr Cantin says they'd returned to assess the mortality and survivorship from the central sector of the Great Barrier Reef.

'We travelled to 14 reefs between Townsville and Cairns, including Fitzroy Island where we saw surviving coral producing eggs, which was not expected at all,' Dr Cantin said.

'Previous studies have shown a two to three year delay in reproduction after severe bleaching but at most of the reefs we are finding colonies of Acropora (branching hard coral) colonies with early signs of egg development in shallow waters, 3m to 6m deep.'

Dr Bay said that the researchers took samples from six different coral species across inshore and offshore environments to help them understand how water quality may also affect bleaching susceptibility and recovery.

While the researchers still have to analyze the data, the reaf bserved significant recovery, particularly on the inshore reefs.

'The majority of coral colonies on the inshore reefs have regained their color and the growth of some colonies was so good they had overgrown our original research tags,' Dr Bay said.

However, the news was not all good. 'Some of the more sensitive corals are now rare even in areas where they had been abundant in March,' Dr Bay said.

Dr Cantin says that fertilization of the tiny eggs happens during the annual spawning event, which is due on the full moon of December 5, and the AIMS research team will test whether the eggs are able to be fertilized. "There is concern the eggs may not be able to successfully fertilize and develop into coral larvae,' Dr Cantin said. 'The eggs are now white, and just before the spawning event they should turn pink when they are preparing for the spawning.'

Dr Cantin says each coral could produce eight to 12 eggs per polyp in colonies of thousands of connected polyps.

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Australia: Prof Peter Ridd: the Great Barrier Reef recovers, our science institutions are failing us, science needs to be checked

Who is Peter Ridd? Some context first:

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Background:

When marine scientist Peter Ridd suspected something was wrong with photographs being used to highlight the rapid decline of the Great Barrier Reef, he did what good scientists are supposed to do: he sent a team to check the facts.

After attempting to blow the whistle on what he found — healthy corals — Professor Ridd was censured by James Cook University and threatened with the sack. After a formal investigation, Professor Ridd — a renowned campaigner for quality assurance over coral research from JCU’s Marine Geophysics Laboratory — was found guilty of "failing to act in a collegial way and in the academic spirit of the institution".

His crime was to encourage questioning of two of the nation’s leading reef institutions, the Centre of Excellence for Coral Studies and the Great Barrier Reef Marine Park Authority, on whether they knew that photographs they had published and claimed to show long-term collapse of reef health could be misleading and wrong.

>>>>>>>>>>>>>>>>>>>>>>>>>>>

Alan Jones, interviews Peter Ridd,  James Cook university professor of physics about the state of the Great Barrier Reef

The coral reef recovers.

Peter Ridd: Coral Reefs recover — "the scientists make hay when it dies in a spectacular way but they are quiet when it recovers."

On symbionts — "There is a large variety of symbionts and some allow coral to grow faster but are more sensitive to bleaching."

All the corals on the Great Barrier Reef live and grow much faster in Papua New Guinea, Indonesia and Thailand where the water is much hotter than it is on the reef and the corals just juggle these symbionts.  

Corals have a little thermometer built in them, when you take a core of them from many years ago we know what the temperature of the water was back when Captain Cook sailed up the coast, it was actually about the same temperature then. It was colder 100 years ago, but it has recovered from that. The temperatures on the reef are not even significantly warmer than average on a hundred year timescale.

Corals that bleach in one year will be less susceptible to bleaching in following years.

On the failure of modern science:

Peter Ridd: We can no longer rely on our science institutions. This is a very sad thing.

We are like a ship upon the ocean when our science fails and we need to do something about it. … This science is almost never checked.

Alan Jones: All these things [bleaching, crown of thorns] have been around for millennia, I love this line, as you write "long before scientists got hold of any scuba gear."

Peter Ridd: These things only became a problem when scientists pop up on the scene.

Scientists are trying to close down, or affect adversely the sugar cane, the cattle, and the coal industry, and they are also telling the world the reef is dead which affects the tourist industry in Queensland.

Like a bushfire… It [bleaching] looks terrible when it happens but it grows back.

On the future:

Peter Ridd: There needs to be a properly funded group of scientists who sole job is to find fault in the science with which we are basing expensive public policy decisions ….

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Warmists take note: Scientists are stunned by corals as big as cars and thriving marine life at Bikini Atoll site where 23 atomic bombs were dropped

Corals and much else are not in danger anywhere on this  evidence.  It is also evidence that the harm from radiation has been much exaggerated

Bikini Atoll, the former paradise island used by the US to carry out 23 nuclear weapons tests 70 years ago, is now teeming with life, scientists have found.

The Pacific Ocean island has blooming populations of plants and animal life, filled with fish such as snapper, sharks and tuna while boasting corals as big as cars.

Crabs the size of hubcaps are said to be feasting on coconuts filled with radioactive groundwater as part of an ecosystem described by experts as 'remarkably resilient'.

Scientists are now sequencing the DNA of the Bikini Atoll coral to better understand how they are able to survive.

The study may help researchers better understand how certain DNA can combat genetic diseases, such as cancer.

During the Cold War, the US detonated 23 nuclear bombs at Bikini Atoll, including a device in 1954 that was 1,100-times more powerful than the Hiroshima atom bomb.

The blasts, detonated in the years between 1946 and 1954, exposed corals and other species to persistent, high levels of radioactivity.

At the time of the tests, residents of the islands were moved to other locations, and the site has remained uninhabited  beyond a handful of caretakers since.

A 2012 report to the United Nations stated that there was 'near-irreversible environmental contamination' to the former nuclear site.

But scientists have found that populations of coral, crabs, fish and sharks are thriving at Bikini Atoll.

A researcher told the Guardian that fish populations are thriving because they have been left alone - 'in a strange way they are protected by the history of this place'.

The findings, led by scientists at Stanford University in northern California, featured in an episode of Big Pacific aired on June 28, a natural history TV series on PBS.

The five-part series, which looked at strange wildlife populations in the Pacific Ocean, did not air in the UK but will be available to buy on DVD later this year.

The study focused on reports of mutant sharks that are missing their second dorsal fin around a submerged hydrogen bomb crater near the island.

Professor Steve Palumbi, a marine scientist at Stanford whose team have been studying the effects of radiation poisoning on marine life, said the bizarre ecosystem is 'remarkably resilient'.

He said that, to the naked eye, the crabs, fish and corals around Bikini Atoll look perfectly normal, and some of the coral has been around for decades.

During the Cold War, the US detonated 23 nuclear bombs at Bikini Atoll, including a device in 1954 that was 1,100-times more powerful than the Hiroshima atom bomb.

The blasts, detonated in the years between 1946 and 1954, exposed corals and other species to persistent, high levels of radioactivity.

The researchers discovered plentiful schools of fish at a lagoon near the Micronesian island, located halfway between Hawaii and Australia.

Professor Palumbi told the Guardian that fish populations are thriving because they have been left alone - 'in a strange way they are protected by the history of this place'.

'It is a remarkable environment, quite odd,' he said.

The fish spawn around the island's waters using an abundant population of coral that seems unaffected by the deadly radiation at the site.

Professor Palumbi and his team are now sequencing the DNA of the Bikini Atoll coral to better understand how they are able to survive.

The study may help to develop research into genetic diseases, such as cancer, in humans.

'The terrible history of is an ironic setting for research that might help people live longer,' Professor Palumbi said.

'By understanding how corals could have recolonised the radiation-filled bomb craters, maybe we can discover something new about keeping DNA intact.'

Although local wildlife appears to be flourishing, the Bikini Atoll site is still considered dangerous to humans.

A 2012 report to the United Nations stated that there was 'near-irreversible environmental contamination'.

'This is the most destructive thing we have ever done to the ocean, dropping 23 atomic bombs on it, yet the ocean is really striving to come back to life,' said Professor Palumbi.

'The fact there is life there and the life there is trying to come back from the most violent thing we've ever done to it is pretty hopeful.'

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"Global coral bleaching event that has lasted three YEARS has finally ended - but reefs are still fighting for their lives"

Nonsense all round.  The Indian ocean was not affected so the event was not global.  And it is admitted below that the effect was largely due to El Nino, not anthropogenic global warming.  They say that El Nino and anthropogenic global warming together had an additive effect but -- even conceding that CO2 causes anthropogenic global warming -- there was no CO2 rise in the relevant years so there was clearly NO rise in anthropogenic global warming.  To put it semi-algebraically:  El Nino + 0 = El Nino. 

And corals are at their most diverse and abundant in warm tropical waters so the claim that warm waters are bad for them is fundamentally perverse.  In Australia's case a sea-level fall was almost certainly the cause of bleaching in warm tropical water off the Far North Queensland coast

And both the extent of the loss and the difficulty of the recovery have been greatly exaggerated.  Do I need once again to mention the coral reef at Bikini atoll which was once the target of a thermonuclear blast -- but which is now again thriving?

 It's just all baseless assertion below.  Correlation is asserted as causation.  Factors like sea-level fluctuations are almost certainly involved but no attempt is made even to look at that.  One doesn't look to Warmists for a balanced account of anything -- which reveals them as fundamentally unscientific.  A scientific paper will normally look at all the possible causes of an event and evaluate them against one another. Warmists know just one cause for everything, ignore all else and assert it "ad infinitum"


A mass bleaching of coral reefs worldwide has finally ended after three years, U.S. scientists announced Monday.

About three-quarters of the world's delicate coral reefs were damaged or killed by hot water in what scientists say was the largest coral catastrophe.

The National Oceanic and Atmospheric Administration first announced a global bleaching event in May 2014.

It was worse than previous global bleaching events in 1998 and 2010.

The forecast damage doesn't look widespread in the Indian Ocean, so the event loses its global scope.

Bleaching will still be bad in the Caribbean and Pacific, but it'll be less severe than recent years, said NOAA coral reef watch coordinator C. Mark Eakin.

Places like Australia's Great Barrier Reef, northwest Hawaii, Guam and parts of the Caribbean have been hit with back-to-back-to-back destruction, Eakin said.

University of Victoria, British Columbia, coral reef scientist Julia Baum plans to travel to Christmas Island in the Pacific where the coral reefs have looked like ghost towns in recent years.

While conditions are improving, it's too early to celebrate, said Eakin, adding that the world may be at a new normal where reefs are barely able to survive during good conditions.

Eakin said coral have difficulty surviving water already getting warmer by man-made climate change. Extra heating of the water from a natural El Nino nudges coral conditions over the edge.

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Why did physicist Dr. Ridd conclude that corals thrive in warmer water and will flourish as global warming increases?

The above question appeared on Quora and the responses are instructive.  The first commenter, Hirsekorn, started out with an incorrect "ad hominem" assertion about Dr. Ridd's academic background.  I quote from Ridd's page at his university: 

"Peter Ridd is a geophysicist with the following interests: coastal oceanography, the effects of sediments on coral reefs, instrument development, geophysical sensing of the earth, past and future climates, atmospheric modelling. In addition with his group in the Marine Geophysics Laboratory "

So Dr. Ridd's background leaves him amply qualified to speak on reef problems.

The next point made by the same author, Hirsekorn, is that individual corals differ in the optimal temperature of the waters surrounding them.  That is undoubtedly true but it offers no scale for that effect.  The acceptable range of temperature could be large and it could differ for individual corals.  And in fact it does, as we see here

So the comments by Hirsekorn have no merit whatever and, as such, are of the standard we have come to expect from Warmists defending their addled theory.

The second comment, by Reiner, is well informed, extensive and perfectly correct.  In particular, it has now been shown that sea level variations in recent times have been the major cause of coral bleaching.  I was unaware that Peter Ridd had predicted that some years back so he is revealed as a good scientist:  One whose theories are borne out by reality

The two original Quora comments below:


Answer by Alex Hirsekorn, lifetime seashore aficionado:

Assuming that you’re referring to Prof. Peter Ridd of James Cook Univ. I would guess that he reached such a conclusion because he is not a biologist but a geophysicist that apparently doesn’t talk to biologists very much.

There are something like 1,000 species of "reef building" coral worldwide and if you plot them by geographic location versus species you will see that they have definite preferences regarding temperature. Looking a bit more carefully will demonstrate that any given species’ numbers will diminish as you leave its temperature ‘sweet spot’ for waters that are either colder or warmer.

You don’t need to be a professor to understand this concept. I’m willing to give the benefit of the doubt and say he was probably misquoted; the alternative explanation is that he’s either a moron or willfully ignorant.


Comment by Bryson Reiner, studied at PhD in Biochemistry:

Peter Ridd is a marine physicist and has published multiple studies on sediments and their effect on coral reefs. Having spoken with Dr Ridd, my understanding is that he was suggesting corals do well not directly due to increased temps-but rather due to increased sea levels. From what I can recall, and my memory is admittedly foggy on this as it was over 5 years ago, that the Great Barrier Reef along the Queensland coast has suffered from declining sea levels which destroys coral. I am pretty sure he was inferring that rising sea levels as a result of a warming trend would increase coral growth-not as a direct result of temperature increase.

To professor Ridd’s credit, he is a strong advocate for reproducibility in the marine sciences and decries sensationalism in science. In particular he mentioned the inability to reproduce studies indicating changes in ocean pH as huge shifts in pH occurred with upwelling and even recent rains which caused short term changes but the studies results were not reproducible over long term. As an aside, certain corals will die in cooler temps just as some may die in warmer temps.

Empirically, as an avid diver-I can attest to the fact that inshore reefs are very likely affected by run off. I've been diving at an unusually inshore reef with huge coral mounts not 20 m from shore since the early 80s which was almost inaccessible as it was on the side of a small mountain in the carribean with only 3 houses nearby and a sheer dirt road that was often washed out. The reef was healthy and vibrant until 2013 when a high end housing development went up complete with a paved road. The effect was immediate as the reef went from vibrant reds, yellows, greens and blues to dull gray. The coral closest to shore was the most affected with another swath of graying coral that went well out to 100 m from shore which I couldn't quite figure out until I saw it rain which produced a huge outflow that ran along a rock jetty as a current which ran identical to the swath of dead coral. The coral has become progressively grey with each visit being worse than the last although the most affected areas remain the ones described. Yes, pollution in petroleum products and detergents certainly have an effect on coral-but to suggest that all, or even most instances of coral bleaching are due solely to temperature change is likely not the case and has yet to be determined at best.

Additionally, there are thriving corals that survive with dramatic changes in temperature near and in the Atlantic gulfstream which shifts its location by tens of miles regularly with temperature changes greater than 20 F-it's a literal column of water where within 10 meters you'll have a 60 F reading and a 80 temp. These corals are still healthy and vivid in color with life teeming all round and withstand these temperature changes on a regular and frequent basis. To suggest less than 1 C degree of change is wiping out corals is likely an overstatement.

I'm a firm believer that coral should be protected as they serve as oceanic estuaries and are simply beautiful little wonders to observe. But I suspect we'll get much better results by investing resources in controlling run off and spills rather than trying to manage the global climate. Specific efforts targeted directly at saving our reefs and coral seem more feasible in this instance vs macromanaging daunting things like the climate which in this instance is inconclusive in the degree to which it may affect the viability of coral. I'll go a step further and guess that managing directly runoff and spills will have a more immediate and dramatic effect on coral health and sustainability than even a successful attempt to change global climate.

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‘Super Corals’ Are Resilient To Climate Change, Scientists Discover

Scientists have discovered a population of “super corals” that appear to have become resistant to extreme environmental conditions — being able to survive and thrive in hot, acidic and low-oxygen waters. And they now plan to search for more climate-adaptable coral populations within the Great Barrier Reef.

An international team of researchers first found the super corals during an expedition to a remote lagoon in New Caledonia in 2016. Their “surprising results” showed the lagoon had a diverse community of reef-building corals that had adapted to live in extreme these conditions.

Publishing their findings in the journal Scientific Reports, the team was investigating coral reef health in relating to climate change. As oceans get warmer and more acidic, vast swathes of coral species suffer. This has been documented globally, with a recent report from the Australian Research Council showing two thirds of the Great Barrier Reef had been affected so far this year.

Coral bleaching occurs when waters are too warm. These conditions make the corals expel the algae living in their tissues—causing them to lose their color. Algae provides coral with 90 percent of its energy, so while this process does not kill it, it places the coral under far greater stress and puts it at greater risk of death.

As global temperatures increase, scientists are increasingly concerned about how coral reefs—which form barriers protecting shorelines from waves and storms, and provide ecosystems for a vast number of species—will fare.

The latest findings provide some relief. Emma Camp, from the University of Technology Sydney (UTS), Australia, and colleagues found water in the semi-enclosed lagoon system was hot, acidic and lacking in oxygen when compared to neighboring reefs. Yet its coral communities was surprisingly rich—there were 20 species covering up to 35 percent of the lagoon site.

“Enhanced coral respiration, alongside high particulate organic content of the lagoon sediment, suggests acclimatisation to this trio of temperature, oxygen and pH changes through heterotrophic plasticity.” Heterotrophic refers to organisms that depend on organic substances for nutrients because they cannot make their own food.

In a statement, Camp said: “The existence of corals living under this usually deadly trio of conditions, comparable and even exceeding what is predicted under climate change, gives us new hope that some corals will be able to persist into the future. These could indeed be the super corals of the future that will help support proactive management options attempting to upgrade reef resilience.”

Concluding, the team wrote: “Evidence here, and from other similar habitats increasingly highlight that reef neighboring systems could act as local reservoirs of coral populations highly resistant to extreme environmental conditions.”

The next step in their research is to search for similar systems in the Great Barrier Reef. The expedition, funded by the National Geographic Society Waitt Foundation, will allow the team to explore mangrove systems—which have similar, extreme conditions to those seen in New Caledonia—and how corals there may have adapted.

“As a result of the expedition we will be able to collect invaluable baseline physical and molecular data to discover how corals within the Great Barrier Reef have already adapted and how they might cope in the future,” Camp said. “I’m excited at the prospect of being able to transfer our discoveries from other sites to our own home reefs.”

David Suggett, who will accompany Camp on the expedition, said: “By exploring the very margins—such as reef-neighbouring mangroves that are often ignored by coral surveys—we’re continually finding populations of super coral that are resistant to hot, acidic and hypoxic conditions predicted under climate change. This is a game changer for how we consider coral reef resilience into the future for the Great Barrier Reef.

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