Climate deniers don't deny climate change any more

What is the rate of ride of the oceans?

 

IOW you don't have the slightest clue what you're talking about. If the moss is there now then it's there in July. Or do you think that it migrates northward for the winter?

And what evidence do you have that the Great Barrier Reef isn't bleaching because of the rise in global ocean temperature?

 

Some ships ride the oceans at 20 knots, and others faster and slower.
How fast do you ride the oceans?

 

July is the middle of winter in Antarctica.

 

Rate of temperature rise.

 

So what evidence do you have that the moss on the Antarctic Peninsular migrates north for the winter?

 

No. We should educate folks on things harming the reef that we have more local control of. Like sugar, rats, and deforestation.

You can’t take away the correct N/P nutrient ratio for coral and its symbionts and replace it with nutrient sources that facilitate bleaching even in moderate temperature anomalies and expect reefs to thrive. You can’t cool the oceans—certainly not anytime soon. You can stop adding sediment and nitrates quickly. You can address sea bird population declines much more rapidly than you can cool the ocean.

But ya’ll have no interest in workable solutions with almost immediate results. You don’t even know about the problems these solutions address.

When is the last time you or anyone else advocated for not eating sugar to save the reef? Or for stopping deforestation to save the reef?

Australia is the only wealthy country on the list of top countries for deforestation. But nobody cares that kills coral. It’s bizarre and sad.

 

Do your homework if you're actually interested. http://www.bom.gov.au/climate/change/about/sst_trendmaps.shtml

 

What scientific evidence do you have that increasing ocean temperatures aren't causing coral bleaching? https://en.wikipedia.org/wiki/Coral_bleaching

 

What an odd question. Did I somewhere claim increasing temps don’t contribute to bleaching?

I have no interest in fallacious arguments.

 

So how do you explain the coral bleaching where there are no human settlements, and the bleaching 250 km off the coastline if increasing ocean temperatures are not the main cause?

 

The moss will be covered with snow and ice in the southern hemisphere winter.

 

How much temperature rise? What is your hypothesis concerning bleaching of coral by wamer water? What is the mechanism?

 

What evidence do you have that the moss on the Antarctic Peninsular isn't increasing because of increasing ocean temperatures?https://www.bing.com/videos/rivervi...C68F9DCF4E603676DF61C68F9DCF4E60367&FORM=VIRE

 

The Great Barrier Reef is 600,000 years old. It has survived many periods of warming and cooling. Coral is always cycling through declines. Coral is very resilient. Any minor temperature changes are not a problem.

 

If ocean temperature is the cause of bleaching why isn't bleaching being experienced at all locations? What is the source of the map?

 

Dunno. I'm not a oceanographer.

 

https://en.wikipedia.org/wiki/Coral_bleaching

 

So what's causing the coral bleaching if it's not from increasing ocean temperatures?

 

There are no human settlements along Great Barrier Reef watersheds? Interesting.

The “main cause” varies depending on location. To further address your strawman (I’ll indulge you this time), I have not stated or implied warming doesn’t cause bleaching. So let’s get over that fallacy.

Nitrate levels in oceans have increased far from population centers. It’s a mostly global phenomenon caused by land based runoff and atmospheric pollution. Uninhabited islands all over the planet are suffering from nutrient runoff associated with coconut and other plantations. Also, introduced rat populations have decimated sea bird populations in Australia as well as other coral reef locations, robbing coral and symbionts of correct nutrient ratios. This happens on uninhabited as well as populated islands and coasts.

We know nutrient and nutrient ratios have huge effects on susceptibility to and recovery from bleaching.

https://www.sciencedirect.com/science/article/pii/S0966842X1930068X

https://www.earth.com/news/bleached-coral-reefs-recover-quickly-in-the-absence-of-human-influences/

Now. When do you expect cooling of the ocean to occur so bleaching is reduced? It will require net zero emissions. That’s a goal for 2050. Unlikely to happen.

My point is we can reduce bleaching NOW by actions other than CO2 emissions reductions. That there is NO interest in doing so is fascinating. You would rather keep banging on about a “solution” that is unlikely to happen and certainly won’t see results for many decades.

All we have to do to reduce bleaching of the Great Barrier Reef is stop killing trees in a relatively small part of Australia. We don’t have to try and get China to stop building captive coal plants in Indonesia. We don’t have to badger India about limiting emissions that benefit its citizens. We just have to stop killing freaking trees in part of Australia. But…..nobody wants actual solutions…

 

So you are claiming that there are different ocean temperatures at the locations in red?

 

So how many people live north of Cairns?
And what is your evidence that tree cover or ocean nitrate levels is causing coral bleaching 250 km off the coast? And what are the nitrate levels 250 km from the coast?

 

Generally warmer in northern regions and cooler in southern. So in 2020 the most bleaching occurred in the cooler waters.

 

Presumably there are different temperatures there.

 

What actual scientific evidence do you have to support your hypothesis that the water was cooler in the bleached areas, given that those areas are all in the tropics and with different ocean currents? Or as a climate change denier, are you just grasping at straws?