We usually associate rising temperature with #reef demise (e.g., #coral #bleaching). But it might be that temperature increase was fundamental to the establishment and formation of the Great Barrier Reef. Not a lot, just 2°C, but it brought carbonate production to the sweet spot to grow. But now #climatechange is shifting it out.
https://www.science.org/doi/10.1126/sciadv.ado2058

#Korallenriffe stehen durch die #Klimakrise vor dem #Aussterben. In nur 18 Monaten gab es vier globale #Bleaching-Ereignisse, bedingt durch steigende #Meerestemperaturen.

https://www.salon.com/2024/11/21/absolutely-devastating-climate-change-is-pushing-coral-reefs-to-extinction-experts-warn/

#Korallenriffe sind nicht nur ein ökologischer Schatz, sondern sichern auch die Ernährung von Milliarden Menschen. Um diese lebenswichtigen #Ökosysteme zu retten, sind globale Zusammenarbeit und lokale Maßnahmen gegen #Klimawandel und #Umweltverschmutzung unverzichtbar.

The Widest-Ever Global Coral Crisis Will Hit Within Weeks, Scientists Say [remote sensing]
--
https://www.nytimes.com/2024/04/15/climate/coral-reefs-bleaching.html <-- shared media article
--
https://www.noaa.gov/news-release/noaa-confirms-4th-global-coral-bleaching-event <-- NOAA technical announcement
--
https://coralreefwatch.noaa.gov/ <-- NOAA Coral Reef Watch home page
--
#GIS #spatial #mapping #remotesensing #earthobservation #global #satellite #coralreefwatch #coral #coralreef #coralbleaching #bleaching #temperatures #climatechange #algae #ecosystems #monitoring #fish #fisheries #foodsecurity #economicbenefits #marine #coast #coastal #model #modeling
@NOAA

#ClimateCrisis: NOAA confirms fourth global #CoralBleaching event https://phys.org/news/2024-04-noaa-fourth-global-coral-event.html

"The world is currently experiencing a global coral #bleaching event, according to #NOAA #scientists. This is the fourth global event on record and the second in the last 10 years... As the world's #oceans continue to warm, #coral bleaching is becoming more frequent and severe. When these events are sufficiently severe or prolonged, they can cause coral mortality"

"The world's #coralreefs are #bleaching. What does that mean?

Huge stretches of coral reef around the world are turning a ghostly white this year amid record warm ocean temperatures.

On Monday, the U.S. National Oceanic and Atmospheric Administration confirmed the world's fourth mass global bleaching event is underway - with serious consequences for marine life and for the people and economies that rely on reefs."

#NOAA

https://www.reuters.com/business/environment/worlds-coral-reefs-are-bleaching-what-does-that-mean-2024-04-15/

"#NOAA confirms 4th global coral bleaching event

The world is currently experiencing a global coral #bleaching event, according to NOAA #scientists. This is the fourth global event on record and the second in the last 10 years."

#korallenriff #korallen

https://www.noaa.gov/news-release/noaa-confirms-4th-global-coral-bleaching-event

"Ocean heat is driving a global coral bleaching event, and it could be the worst on record

#Coralreefs around the world are experiencing a mass #bleaching event as the #climate crisis drives record-breaking ocean heat, two scientific bodies announced Monday — with some experts warning this could become the worst bleaching period in recorded history."

#korallenriff #korallen

https://edition.cnn.com/2024/04/15/climate/global-coral-reef-mass-bleaching-climate-hnk-intl

The Widest-Ever Global #Coral Crisis Will Hit Within Weeks
Rising sea temperatures around planet have caused #bleaching event that is expected to be most extensive on record. It is fourth such global event on record and is expected to affect more reefs than any other. Bleaching occurs when #corals become so stressed they lose symbiotic algae they need to survive. Corals can recover, but if water surrounding them is too hot for too long, they die.
https://www.nytimes.com/2024/04/15/climate/coral-reefs-bleaching.html
https://archive.ph/AuuP7

"#Coral research finds bleaching impedes reproduction and hinders recovery

#Bleaching can suppress reproduction in a common coral species found in the Great Barrier Reef, hampering future reef replenishment, new research led by the Australian Institute of Marine Science (AIMS) and James Cook University (JCU) has identified."

#korallenriff #korallen #greatbarrierreef #australia

https://phys.org/news/2024-03-coral-impedes-reproduction-hinders-recovery.html

South-east Florida’s corals are now at the highest alert level for bleaching for the first time ever, according to the National Oceanic and Atmospheric Administration (Noaa), with “significant mortality likely” for its corals amid abnormally hot ocean temperatures.