Bleached corals thrive within days when touching healthy neighbour (nature.com)

TLDR Yes but it's complicated. There are more suitable algae species but AFAIK coral under heat stress will still often expel the algae even if the algae isn't the one stressing the coral. So you have to essentially breed a more tolerant coral and then provide the algae.

Now luckily there do exist more heat tolerant coral and algae species living alongside each other. Unfortunately those species are located in the Persian Gulf/inside the Strait of Hormuz so they are regularly subject to added stressors from Oil/NG extraction, military conflicts, and waste dumping. And of course their location makes research on them/collaboration between research institutions complicated.

And it's not like you can just transplant these coral somewhere else and they'll live. They are adapted to their environment and that environment plays a part in their heat tolerance as well. But research on these coral ecosystems will likely shed a light on how to help other coral species to adapt and evolve.

Until the Boomers finish ageing out and GenZ/A grow up to take the reins, the status quo stays

Bleaching is not death of the coral, it is the expulsion of algae (typically in high temperatures). The coral can find a different species of algae, or the algae can return once temperatures drop.

There are corals living in regions of the ocean with different temperatures, so it is not that high temperature alone would kill all coral, but populations adapted to a given region (like north vs south GBR) are being affected by the speed of the changes.

Typically the biggest change in diversity is due to cyclones which kill of the delicate and fast-growing corals like staghorns, which are also the fastest to grow back.

So don't straw man please into changing the focus into war because you're uncomfortable. I can see I struck a chord - would you agree you're shifting onto a straw man? And sounds a defensive retort to then reduce my argument to absurdity to dismiss it and invalidate it.

Why should I engage your straw man? Are you uncomfortable? I'm not - but why would I engage you if you failed to demonstrate you heard me. edit: if you're going into an emotionally hostile state, I refuse to take on the emotional labor of being your emotional processing for you - we can agree to mutually disengage.

You responded with Ad Hominem, which is fundamentally intellectually dishonest - and then accused me the exact thing you're doing.

The good news is you don't have to be an expert in geoscience to see the connection isn't as simplistic as many assume. Look at the data instead of having preconceived ideas. As an example, when you look at sea temperature data for many of the areas worst affected by coral death in recent decades (Maldives, Seychelles, parts of the Caribbean) you will see they have only seen moderate or even no temperature rise, while many other regions have seen more dramatic rise in local sea temperature and yet have healthier coral.

The fact that the GBR in Australia has seen temperature rise and coral death does not necessarily mean that there is a direct causation or even that it's the main cause. Have you considered other causes play a role?

I am just glad coral can repair themselves.

Thumbs up to the researcher.