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Old 24-05-2020, 14:02   #31
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Re: Coral reefs in the Pacific

If it remains respectful and productive then,,,,OK I'm in.
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I just knew this was going to happen
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Old 24-05-2020, 15:59   #32
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Re: Coral reefs in the Pacific

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If it remains respectful and productive then,,,,OK I'm in.

Productive? I've never seen anyone's opinion altered one iota in all of the previous similar threads.



If you want to see all of Jackdale's "party line" references, there's no need to wait for him to post them yet again. You'll find them repeated on all the previous GW threads
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Old 24-05-2020, 18:06   #33
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Re: Coral reefs in the Pacific

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Productive? I've never seen anyone's opinion altered one iota in all of the previous similar threads.



If you want to see all of Jackdale's "party line" references, there's no need to wait for him to post them yet again. You'll find them repeated on all the previous GW threads
You are correct. It would be a fruitless discussion and off topic. I will give it a pass.

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Old 27-05-2020, 04:19   #34
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Re: Coral reefs in the Pacific

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My 50 years of wreck / reef / wall diving in SE Asia, Hawaii and Mayan reef has unscientifically been spectacular. Just out of curiosity how old are the planet's reefs? What has the temperature profile been during that period? As the planet warms what areas will degrade? What areas will proliferate? btw where does limestone come from?
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Good read! https://dec.vermont.gov/geological-s...-geology/Chazy TY! I was kinda asking a couple loaded questions. I really struggle with the concept that an ocean a couple degrees warmer and or a tiny change in the amount of CO2 (a gas that makes up a total of .04% of our atmosphere) will have a devastating effect on the reefs. If we have a 5% rise in CO2 it will be .002% of our atmosphere(if i got the math right). We are supposed to believe a couple few degrees warmer and .002% change in the atmosphere will be devastating? Coral reefs are millions of years old. They have existed even flourished through extensive changes in climate and atmospheric conditions. https://en.wikipedia.org/wiki/Global_temperature_record
Ignorance, either feigned or genuine, is never attractive, in spite of much of the propaganda put out by western (or western-style) media.

Doubly so given the relative ease with which actual facts can be had by those willing to put more effort into gathering these facts than perusing the latest self-confirming collection of mass media tripe.

To put the tired old "I really struggle with the concept that an ocean a couple degrees warmer and or a tiny change in the amount of CO2 (a gas that makes up a total of .04% of our atmosphere) will have a devastating effect on the reefs." trope into a perspective that might have a larger relevance for some of the usual suspects here, let's compare testosterone in human blood to CO2 levels in the atmosphere.

From memory, according to the data, CO2 levels in the atmosphere have averaged around 280 ppm for at least the last million years or so; in the last 150, they increased roughly by half, to 420 ppm currently, due primarily and ultimately to the adoption of an individual-first, technology-driven, capitalistic socio-economic business model by certain governments.

Our simultaneous recognition of the properties, nature and effects of gases at the beginning of this period, soon led to the speculation, and later confirmation, of what the result of changing the ratios of such (seemingly) small constituents in the atmosphere would be. It's just physics, and luckily (for some), opinion doesn't enter into it, or alter the facts in the least.

Comparing that 'tiny' 420 (or 280) ppm level of CO2 in the atmosphere to that of testosterone in the blood of humans; an 'average' male has about .006 ppm, an 'average' female .00045.

Crudely put another way, the difference in you and your wife/girlfriend/whatever female is determined by a .00555 ppm difference in the quantity of a single hormone in your blood.



Whether you believe it or not, "a couple few degrees warmer and .002% change in the atmosphere will be devastating" is devastating (at least to life-as-we-know-it), will continue to be so, and is (for now) on track to get worse or very much worse...

There are no living coral reefs on earth that are "millions of years old".
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Old 27-05-2020, 04:53   #35
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Re: Coral reefs in the Pacific

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Crudely put another way, the difference in you and your wife/girlfriend/whatever female is determined by a .00555 ppm difference in the quantity of a single hormone in your blood.

ROTFLMAO.
So chromosomes have nothing to do with gender?

And until puberty males and females are identical?

Who'd have guessed?
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Old 27-05-2020, 18:00   #36
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Re: Coral reefs in the Pacific

PLEASE keep this discussion on topic, and remember

We take the "be nice" rule VERY seriously! We do not tolerate ANY rudeness. --From the Community Rules


Failure to follow the rules will lead to thread closure.

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Old 27-08-2021, 02:51   #37
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Re: Coral reefs in the Pacific

“Can artificially altered clouds save the Great Barrier Reef?” ~ by Jeff Tollefson

In the world’s first field trials of marine cloud brightening, scientists have demonstrated a system designed to artificially brighten clouds, to protect Australia’s Great Barrier Reef.

On the back of a repurposed ferry boat, 320 nozzles spewed a mist of nano-sized salty droplets. In theory, the spray will be incorporated into low-lying clouds, and make them reflect more sunlight, which would provide a bit of cooling shade for the coral colonies below. Field tests, in March, and last year, gave researchers the chance to see the nozzles at work, and observe how the mist behaved in the real world.

If the project comes to fruition, it would require a vast array of misting stations to significantly affect the clouds over the huge reef, and would only buy time for more fundamental efforts to address climate change.

More ➥ https://www.nature.com/articles/d41586-021-02290-3
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Old 27-08-2021, 03:25   #38
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Re: Coral reefs in the Pacific

Found all of French Polynesia to be in relatively poor shape last year. The lagoons with a lot of pearl farming are the worst. Societies the coral is in pretty sad shape compared with 16 years ago. Parts of Tonga are said to still be pretty good. Hoping to get there next year.
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Old 27-08-2021, 16:17   #39
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Re: Coral reefs in the Pacific

I still remember Vavaʻu, Tonga very fondly from about 30 years ago - unbelievably stunning

Of course, even then there were already people saying, 'you should have seen it (another) 30 years before, it's just not the same anymore'
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Old 30-08-2021, 05:29   #40
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Re: Coral reefs in the Pacific

“Muga dhambi” offers hope for the future of the Great Barrier Reef

“Muga dhambi”, the Great Barrier Reef’s widest coral, has survived for hundreds of years [421–438 years], survived as many as 80 cyclones, and weathered 99 bleaching events.

Found just off the coast of Goolboodi Island, in Northeast Australia, this reef-building Porites measures 10.4 meters in diameter, earning it the nickname Muga dhambi, or “big coral,” from the Indigenous custodians of the island, the Manbarra people.

Muga dhambi stands a little over 5 meters tall, making it the sixth tallest coral in the Great Barrier Reef, researchers report [1] August 19, in Scientific Reports.

[1] “Field measurements of a massive Porites coral at Goolboodi (Orpheus Island), Great Barrier Reef” ~ by Adam Smith et al
https://www.nature.com/articles/s41598-021-94818-w
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Old 12-10-2021, 03:54   #41
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Re: Coral reefs in the Pacific

Between 2009 and 2018, the world lost about 14% of the coral on its coral reefs, which equates to around 11,700 square kilometres of coral, more than all the living coral in Australia.

See ➥ https://www.cruisersforum.com/forums...ml#post3500741


The Sixth Status of Corals of the World: 2020 Report”
Full ➥ https://gcrmn.net/2020-report/
Summary ➥ https://gcrmn.net/wp-content/uploads...-Forewords.pdf
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Old 21-10-2021, 05:10   #42
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Re: Coral reefs in the Pacific

I have been travelling through the South Pacific since 1989. I struggle to believe that only 14% of the coral was lost in that period. Northern Tonga, even as late as 2013 was tens of thousands of hectares of vibrantly alive colour. Now it's 95% brown algae desert. The Haapai's are the same until the very southern few reefs. Nearly all of French Polynesia is long gone and even places like the famous coral gardens off Tahaa are dead. There were still some live reefs in both New Caledonia and Vanuatu the last time I was there in 2018, but most of the Cook Islands have little to no live coral left. I spent 2 months diving most days working from the N of the Whitsundays down to the S end of the GBR in 2018 but I saw little in the way of live healthy reef.
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Old 21-10-2021, 05:31   #43
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Re: Coral reefs in the Pacific

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I have been travelling through the South Pacific since 1989. I struggle to believe that only 14% of the coral was lost in that period. Northern Tonga, even as late as 2013 was tens of thousands of hectares of vibrantly alive colour. Now it's 95% brown algae desert ...
November 17, 2020
“Biophysical and anthropogenic influences on the status of Tonga’s coral reefs and reef fish fishery” ~ by Patrick Smallhorn-West et al
https://journals.plos.org/plosone/ar...l.pone.0241146

More news about: “Scientific survey of Tongan reefs reveals poor status of fish”
https://matangitonga.to/2020/02/01/s...or-status-fish

December 2019
“Progress towards conserving Tonga's coral reefs” ~ by Patrick Smallhorn-West
https://www.researchgate.net/publica...7s_coral_reefs
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Old 21-10-2021, 05:47   #44
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Re: Coral reefs in the Pacific

I spent alot of time in Tonga in 2013, and again in 2017. The difference was devastating. As an illustrative anecdote, in November 2017 I had an American sailor who had been diving through the South Pacific extensively that season ask me to indentify something unusual which he had photographed which he had not seen before. It was a photo of live colourful coral.
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