Coral adapting to warmer temps, bleaching threshold increased this past decade

[Bigdog]

https://www.openchannels.org/literature/24455

A global analysis of coral bleaching over the past two decades

Turns out, coral adapts very quickly. whodathunk?

Let me add ...

https://www.reef2reef.com/ams/can-fe...-adaptable.52/

"In 2015, the University of Miami Rosentiel School of Marine and Atmospheric Science set-out to learn what factors could improve coral’s resistance to climate change. Their focus was staghorn coral (Acropora cervicornis) which has nearly been eradicated throughout the Caribbean Sea. Climate change has played a large role in this mass die-off, presenting corals with a mix of rising ocean temperatures, high levels of co2 and dwindling ph. Researchers set-up two identical aquariums, both mirroring the effects of climate change. Water temperature was slowly increased and ph was slowly dropped by allowing co2 to build-up within the water.

One population of corals was heavily fed a diet of live rotifers and planktonic foods (the same preparations available to aquarists) while the other tank wasn’t fed anything, other than the excess food left over from zooxanthellae’s photosynthesis. The results were surprising. The corals within the tank which was fed the same foods available to all aquarists thrived, maintaining their color, polyp extension and growth, even in climate change conditions. Corals within the tank not supplemented with foods began to bleach, retract and eventually succumbed to RNT, which is a common symptom of climate change on coral reefs. The researchers used mixed genetic strains of staghorn coral, helping to ensure that the study wasn’t a fluke, with one genetic strain being more resistant to climate change than the others."

[Cypress]

You are such a fucking idiot. I am wasting no more time responding to you. I did it last time you said the same fucking thing. This study provides evidence that coral are adapting easily to climate change. Can you refute that? Then shut the fuck up, you fucking retard

You invested yourself emotionally in promoting a preposterous conspiracy theory that there was an international cabal of scientists lying and faking the data to perpetrate a global warming hoax.

An international conspiracy so cleverly and diabolically hidden from public view, that none of the world's governments have ever been able to penetrate it.

A truly remarkable conspiracy, wouldn't you say?

When you hung your hat and staked your reputation on a conspiracy theory so transparently preposterous, you forever tarnished your credibility to have your opinion on climate science taken seriously.

[tinfoil]

You invested yourself emotionally in promoting a preposterous conspiracy theory that there was an international cabal of scientists lying and faking the data to perpetrate a global warming hoax.

An international conspiracy so cleverly and diabolically hidden from public view, that none of the world's governments have ever been able to penetrate it.

A truly remarkable conspiracy, wouldn't you say?

When you hung your hat and staked your reputation on a conspiracy theory so transparently preposterous, you forever tarnished your credibility to have your opinion on climate science taken seriously.

I popsted the adjustments, you dumbass. .6 degrees of the changes since 1900 are due to adjustments. It's not in question. You are a tard, man. Give it up.

[Bigdog]

https://www.openchannels.org/literature/24455

A global analysis of coral bleaching over the past two decades

Turns out, coral adapts very quickly. whodathunk?

And another thing ...

"Expanding the subject of CO2 effects on other marine organisms, Gutowska et al. (2008) studied the cephalopod mollusk Sepia officinalis and found that it “is capable of not only maintaining calcification, but also growth rates and metabolism when exposed to elevated partial pressures of carbon dioxide.” Over a six-week test period, for example, they found that “juvenile S. officinalis maintained calcification under ~4000 and ~6000 ppm CO2, and grew at the same rate with the same gross growth efficiency as did control animals,” gaining approximately 4% body mass daily and increasing the mass of their calcified cuttlebone by over 500%. These findings thus led them to specifically conclude that “active cephalopods possess a certain level of pre-adaptation to long-term increments in carbon dioxide levels,” and to generally conclude that our “understanding of the mechanistic processes that limit calcification must improve before we can begin to predict what effects future ocean acidification will have on calcifying marine invertebrates.”

http://www.co2science.org/education/...rals/p2ch1.php

[Cypress]

I popsted the adjustments, you dumbass. .6 degrees of the changes since 1900 are due to adjustments. It's not in question. You are a tard, man. Give it up.

I no longer accept your "blog science". Your pseudo-experts. Your links to Anthony Wattts, and other non-experts. You have never been able to back your claims and assertions up with a body of peer reviewed science from a host of reputable scientists. The weight of evidence is against you...and against you very badly.

You fell for and were easily duped by an utterly preposterous conspiracy theory, and took personal joy in libeling scientists who were just doing their jobs to the best of their ability. I hope no one take pleasure spreading libel about you; I don't think you would like it.

"Some scientific conclusions or theories have been so thoroughly examined and tested, and supported by so many independent observations and results, that their likelihood of subsequently being found to be wrong is vanishingly small. Such conclusions and theories are then regarded as settled facts. This is the case for the conclusions that the Earth system is warming and that much of this warming is very likely due to human activities."

US National Academies of Sciences, 2010

[Bigdog]

"A number of more modern studies have also demonstrated that symbiont photosynthesis enhances coral calcification (Barnes and Chalker, 1990; Yamashiro, 1995); and they have further demonstrated that long-term reef calcification rates generally rise in direct proportion to increases in rates of reef primary production (Frankignoulle et al., 1996; Gattuso et al., 1996, 1999). In fact, the work of Muscatine (1990) suggests that “the photosynthetic activity of zooxanthellae is the chief source of energy for the energetically expensive process of calcification” (Hoegh-Guldberg, 1999). Consequently, if an anthropogenic-induced increase in the transfer of CO2 from the atmosphere to the world’s oceans, i.e., hydrospheric CO2 enrichment, were to lead to increases in coral symbiont photosynthesis – as atmospheric CO2 enrichment does for essentially all terrestrial plants (Kimball, 1983; Idso, 1992) – it is likely that increases in coral calcification rates would occur as well.

There are several reasons for expecting a positive coral calcification response to CO2-enhanced symbiont photosynthesis. One of the first mechanisms to come to mind is the opposite of the phenomenon that has been proffered as a cause of future declines in coral calcification rates. This reverse phenomenon is the decrease in extracellular CO2 partial pressure in coral tissues that is driven by the drawdown of aqueous CO2 caused by the photosynthetic process "

http://www.co2science.org/education/...rals/p2ch1.php

When CO2 is added to terrestrial plants, you have to feed them more fertilizer. Which supports the conclusions of the staghorn coral study ... which shows feeding in a high CO2 environment keeps the corals healthy.

Liberals hate science

[Bigdog]

" Assuming that the rise in the planet's mean surface air temperature continues unabated, and that it eventually causes the melting of all terrestrial ice and permanent snow, Loaiciga calculated that "the average seawater salinity would be lowered not more than 0.61‰ from its current 35‰." He also reports that across the range of seawater temperature considered (0 to 30°C), "a doubling of CO2 from 380 ppm to 760 ppm increases the seawater acidity [lowers its pH] approximately 0.19 pH units." He thus concludes that "on a global scale and over the time scales considered (hundreds of years), there would not be accentuated changes in either seawater salinity or acidity from the rising concentration of atmospheric CO2."

Furthermore, with more CO2 in the air, additional weathering of terrestrial carbonates is likely to occur, which would increase delivery of Ca2+ to the oceans and partly compensate for the CO2-induced decrease in oceanic calcium carbonate saturation state (Riding, 1996). "

http://www.co2science.org/education/...rals/p2ch1.php

Liberals really really hate science.

[cancel2 2022]

You are such a fucking idiot. I am wasting no more time responding to you. I did it last time you said the same fucking thing. This study provides evidence that coral are adapting easily to climate change. Can you refute that? Then shut the fuck up, you fucking retard

Peter Ridd is the world's foremost expert on the Great Barrier Reef.

Date: 12/12/18 Dr Peter Ridd, Australia

The scare stories about the Great Barrier Reef started in the 1960’s when scientist first started work on the reef. They have been crying wolf ever since.

Scientists from James Cook University have just published a paper on the bleaching and death of corals on the Great Barrier Reef (GBR) and were surprised that the death rate was less than they expected because of the adaptability of corals to changing temperatures. It appears as though they exaggerated their original claims and are quietly backtracking. To misquote Oscar Wilde, to exaggerate once is a misfortune, to do it twice looks like carelessness, but to do it repeatedly looks like unforgivable systemic unreliability by some of our major science organisations.

It is a well-known phenomenon that corals can adapt very rapidly to high temperatures and that if you heat corals in one year, they tend to be less susceptible in future years to overheating. It is the reason why corals are one of the least likely species to be affected by climate change, irrespective of whether you believe the climate is changing by natural fluctuations or from human influence.

Corals have a unique way of dealing with changing temperature by changing the microscopic plants that live inside them. These microscopic plants called zooxanthellae give the coral energy from the sun by photosynthesis in exchange for a comfortable home inside the coral. But when the water gets hot, these little plants become effectively poisonous to the coral and the coral throws out the plants turning the coral white – it bleaches. But most of the time the coral will recover from the bleaching. And here’s their trick- they take in new zooxanthellae, that floats around in the water quite naturally, and can select different species of zooxanthellae to be better suited to hot weather. Most other organisms have to change their genetic makeup to deal with temperature changes, something that can take many generations. But corals can do it in a few weeks by just changing the plants that live inside them. They have learnt a thing or two in a couple of hundred million years of evolution.

The problem here is that the world has been completely mislead by scientists about the affect of bleaching and rarely mention the spectacular regrowth that occurs. For example, the 2016 bleaching event supposedly killed either 95%, 50% or 30% of the reef depending upon which headline and scientist you want to believe. But the scientists only looked at very shallow water coral – less than 2 meters below the surface which is only a small fraction of all the coral, but by far the most susceptible to getting hot in the tropical sun. A recent study found that the deep water coral (down to over 40 m) got far less bleaching as one would expect. I estimate that less than 8% of the GBR coral actually died. That might still sound like a lot, but considering that there was a 250% INCREASE in coral between 2011 and 2016 for the entire Southern Zone of the GBR, an 8% decrease is nothing to worry about. Coral recovers fast.

But this is just the tip of the exaggeration iceberg. Some very eminent scientists claim that bleaching never happened before the 1980’s and is entirely a man-made phenomenon. This was always a ridiculous proposition. A recent study of 400-year-old corals has found that bleaching has always occurred and is no more common now than in the past. Scientist have also claimed that there has been a 15% reduction in the growth rate of corals. However, some colleagues and I demonstrated that there were serious errors in their work and that if anything there has been a slight increase in coral growth rate over the last 100 years. This is what one would expect in a gently warming climate. Corals grow up to twice as fast in the hotter water of Papua New Guinea and the northern GBR than in the southern GBR. I could go on with many more examples.

This unreliability of the science is now a widely accepted scandal in many other areas of study and now has a name. “The Replication Crisis”. When checks are made to replicate or confirm scientific results, it is regularly found that around half has flaws. This is an incredible and scandalous situation and it is not just me saying this – it is the editors of eminent journals and many science institutions. A great deal of effort is now going into fixing this problem especially in the Biomedical Sciences where the problem was first recognised.

But not for GBR science. The science institutions deny there is a problem and fail to correct erroneous work. When Piers Larcombe and I wrote an article to a scientific journal suggesting we needed a little extra checking of GBR science, the response from many very eminent scientists was that there was no need. Everything is fine. I am not sure if this is blind optimism or wilful negligence, but why would anybody object to a little more checking? It would only cost a few million dollars, just a tiny fraction of what the governments will be spending on the reef.

But the truth will out eventually. The scare stories about the GBR started in the 1960’s when scientist first started work on the reef. They have been crying wolf ever since. But the data keeps coming in and, yes, sometimes a great deal of coral dies in a spectacular manner with accompanying media fanfare. It is like a bushfire on land, it looks terrible at first, but it quietly and rapidly grows back ready for the scientists to peddle their story all over again.

Dr Peter Ridd

https://www.thegwpf.com/peter-ridd-c...-barrier-reef/

[PostmodernProphet]

Jesusfuckingchrist! I SMOKED. Then I get 'S Y M P T O M A T I C' that something wasn't right! When I got symptomatic, I quit SMOKING. 19 years later I still get yearly XRAYS to determine if there is a latent disease process from my smoking.

This isn't hard!

did humanity smoke 150,000 years ago when we had the last warming cycle?......

[Truth Detector]

Goal post moving does not cut the mustard with me.

No one is moving anything you schmuck. The liars on the left are the one's constantly changing the narrative.

Your president said global warming was a Chinese hoax.

OUR President says MAN caused warming is the hoax. Buy a clue.

Through most of the 1990s and early 2000s, denial of global warming was ubiquitous among conservatives, dunces, and other science deniers.

Search this forum for posts about "Climategate", which will show you that wingnuts claimed global warming was a hoax, and scientists were faking the data.

Your president's own man at EPA says human emissions of heat trapping greenhouse gasses are contributing to global warming.

Again; NO one on the planet doesn't think the earth is in a warming trend. It started millions of years ago. Much like past cooling and warming trends long before man was even conceived.

Only gullible twits like you think that man has the power to change the earth's climate while ignoring the earths historic past.

[Phantasmal]

You are such a fucking idiot. I am wasting no more time responding to you. I did it last time you said the same fucking thing. This study provides evidence that coral are adapting easily to climate change. Can you refute that? Then shut the fuck up, you fucking retard

Lol, in other words, he nailed you.

[jimmymccready]

The OP is an example of alt confirmation science that will be thrown out by a dem administration beginning in less than two years

[Earl]

Lol, in other words, he nailed you.

No, he didn't, Snowflake. Neither did you.

[Phantasmal]

No, he didn't, Snowflake. Neither did you.

Yawn, pookie pie must need attention this morning...go lie about not being on Medicare, kisses.

[Truth Detector]

Some greatest Climate Denier Hits:

You're such a dishonest twat.

"Is global warming a hoax?"
From the article: Is man-made global warming the dire threat environmentalists claim?"

"Global Warming Fraud"
From the article: “It is not possible to stop climate change, a natural phenomenon that has affected humanity through the ages.” The notion that mankind has any impact on climate or weather is absurd.

"Record cold on the way - the end of the global warming hoax?"
From the article: “Iceland’s glaciers are growing because we are headed into a Grand Solar Minimum, says Christian of Ice Age Farmer..

It's dishonest hacks like you who are the reason no one can expect an intelligent debate. Liars like you are compelled to lie because facts do not support your moronic claims and beliefs.