this post was submitted on 23 Apr 2025
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An ashen pallor and an eerie stillness all that remains where there should fluttering fish and vibrant colours in the reefscape, one conservationist says

The world’s coral reefs have been pushed into “uncharted territory” by the worst global bleaching event on record that has now hit more than 80% of the planet’s reefs, scientists have warned.

Reefs in at least 82 countries and territories have been exposed to enough heat to turn corals white since the global event started in January 2023, the latest data from the US government’s Coral Reef Watch shows.

Coral reefs are known as the rainforests of the sea because of their high concentration of biodiversity that supports about a third of all marine species and a billion people.

But record high ocean temperatures have spread like an underwater wildfire over corals across the Pacific, Atlantic and Indian oceans, damaging and killing countless corals.

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[–] disguy_ovahea@lemmy.world 46 points 16 hours ago* (last edited 14 hours ago) (2 children)

Everyone is playing the Earth’s favorite new game, Extinction Events! Brought to you by corporate America.

Will you starve, drown, burn, asphyxiate, or succumb to disease? The fun doesn’t stop until the last player is out!

[–] henfredemars@infosec.pub 8 points 15 hours ago

I don’t even get to see any of that money. Yet, I have to live on a dying planet with the rest of you.

[–] JohnDClay@sh.itjust.works 18 points 16 hours ago (1 children)

Hank Green video on what we can do. Reefs can actually recover from bleaching, which I didn't know.

https://youtu.be/hxZDyV-E5WY

[–] WhatAmLemmy@lemmy.world 17 points 14 hours ago (1 children)

They can, but they aren't gonna experience a time as cool as the 2020's for at least another century. The extinction of 90+% of the world's coral reefs are already locked in.

Within the next 15 years, we'll emit another 25% of all GHG's emitted to date.

Don't ever take this in a defeatist kind of way. Get fuckin angry. Humanity is systematically murdering most life on earth — in the blink of an eye — all because of our most greedy, selfish, and ignorant.

[–] JohnDClay@sh.itjust.works 6 points 13 hours ago (1 children)

Yeah, the defeatist view is really dangerous. But as the video addresses, by limiting other stressors, reefs can recover even at higher temperatures.

[–] Poem_for_your_sprog@lemmy.world 3 points 11 hours ago (1 children)

We're in for 4-10C (highest probability at 6C) of warming. Where's the hope?

[–] JohnDClay@sh.itjust.works 3 points 10 hours ago

There's no hope of zero warning. There's hope that we can minimize the warming to that 6C or lower. And hope that we can help ecosystem adapt to new climates. There are corals that are adapting, we need to make sure they survive and spread. We might even need to engineer in heat tolerance. Warming is coming, if they only need to deal with it, they might be able to adapt. But when you stack an half a dozen other significant stressors, it becomes much less likely to survive. So reducing those stressors helps, even if global warming is going to be bad.

[–] xc2215x@lemmy.world 10 points 16 hours ago (1 children)

Utterly brutal for the reefs. Wow.

[–] TheFriar@lemm.ee 6 points 13 hours ago

Utterly brutal for all life on planet earth.