4-Jun-2025
A summer like no other: inside 2023’s record-smashing #NorthAtlantic marine #heatwave
https://www.eurekalert.org/news-releases/1085942 #science #ClimateCatastrophe #marineHeatwaves
#MarineHeatwaves
🌡️ The ocean's fever in 2024 reached 40 million km² of marine heat waves, causing coral reef devastation and accelerating climate threats.
❄️ Indonesia's tropical glacier shrank drastically, risking extinction by 2026.
🌪️ Hotter oceans fuel stronger storms affecting millions.
The climate emergency demands urgent attention.
#ClimateChange #MarineHeatWaves #OceanHealth
#NZ #marine sponges ‘melted’ in temperatures not expected until 2100
"Sponges have been around for more than 500 million years, surviving multiple mass extinctions. Perhaps the ability to change microbial numbers or types, depending on conditions, could account for some of that longevity?"
#MarineHeatWaves
https://cosmosmagazine.com/nature/marine-life/nz-sponges-melt-in-marine-heatwave/
@GhostOnTheHalfShell I did a feature on #kelp last year: https://proseandpassion.blogspot.com/2024/11/brown-algae-and-blue-carbon.html and one on #marineHeatwaves the year before, https://proseandpassion.blogspot.com/2023/08/our-planet-is-in-hot-water.html I think I mentioned similar problems of kelp being replaced by algae as the water warms in one of these.
"The authors note that one group of researchers found that the number of such #heatwaves in 2023–2024 was 240% higher than any other year in recorded history. They also note that the more often such heat waves occur, the more difficult it is for affected areas to recover."
https://phys.org/news/2025-03-scientists-highlight-alarming-marine-worldwide.html
#OceanHeatwaves #MarineHeatwaves
I know we're land dwellers, but this is a water planet, and we need to pay attention to what's happening with the water.
Surge in marine #heatwaves costs lives and billions in storm damage – study
"Floods, whale strandings and coral bleaching all more likely, say researchers, as 10% of ocean hits record high temperatures in 2023-24.
One of the most surprising findings in the study, said Smith, was “how much [#MarineHeatwaves] accentuated storms on land and the number of people that were hit by that – hurt, lost possessions, [suffered a] monetary impact or lost their lives”. "
Another coral bleaching event.
Guardian: ‘Graveyard of corals’ found after extreme heat and cyclones hit northern Great Barrier Reef https://www.theguardian.com/environment/2024/nov/19/graveyard-of-dead-coral-great-barrier-reef-bleaching-damage #ClimateEmergency #coral #SSTs #marineheatwaves
#Ocean eddy currents funnel extreme heat and cold to the life-filled depths https://theconversation.com/ocean-eddy-currents-funnel-extreme-heat-and-cold-to-the-life-filled-depths-241363
Common occurrences of subsurface #heatwaves and cold spells in ocean eddies https://www.nature.com/articles/s41586-024-08051-2
"eddies played a major role in triggering #MarineHeatwaves and cold spells in waters deeper than 100 metres – especially in the mid-latitude oceans north and south of the tropics"
last year's feature on #marineHeatWaves is now in the open archives
https://proseandpassion.blogspot.com/2023/08/our-planet-is-in-hot-water.html #science #ecology #environment #climateCatastrophe
13-JUN-2024
#MarineHeatwaves devastate red gorgonians in the Medes Islands
Point of no return
https://www.eurekalert.org/news-releases/1048191 #science #ecology #ClimateCatastrophe #MarineBiology #corals
Occasionally, and only partly to wind up my remote sensing colleagues, I describe #satelliteData as "basically a model". Per definition satellite data is electromagnetic radiation (at different frequencies/wavelengths) that has passed through (some of) the earth's atmosphere and then run through a model to give us "satellite data".
Not an original point but it does explain some interesting findings in @micefearboggis' latest on #MarineHeatwaves
❗❗ Check out our new paper led by Chloé Carbonne on the response of two temperate scleractinian #corals to projected #OceanWarming and #MarineHeatwaves
https://royalsocietypublishing.org/doi/10.1098/rsos.231683
@CopernicusEU
add in the impact of #oceanwarming and #marineHeatwaves like this extreme event in Shark Bay, Western Australia over 2010/11 summer https://www.nature.com/articles/s41558-018-0096-y
Modelling #ElNino impact to June 2024:
"Regions particularly susceptible to recording record-high Surface Air Temperatures (SAT) include coastal and adjacent areas in Asia such as the Bay of Bengal and the South China Sea, as well as Alaska, the Caribbean Sea, and the Amazon. This impending warmth heightens the risk of year-round #marineHeatwaves and escalates the threat of #wildfires and other negative consequences in Alaska and the Amazon basin, necessitating strategic mitigation measures to minimize potential worst-case impacts."
#ENSO #ClimateCrisis
https://www.nature.com/articles/s41598-024-52846-2
Quite a sign of the times. #ClimateChange #MarineHeatwaves https://t.co/IP0uTqminz
"A new study finds that #MarineHeatwaves are changing the base of the marine #food chain, disrupting ecosystems and potentially global food supplies."
https://www.voanews.com/a/study-finds-ocean-heatwaves-could-affect-global-food-supplies/7471051.html
2023 smashes record for world’s hottest year by huge margin.
We are ‘well outside safe operating space for humanity’
"Rapid reduction in fossil fuel burning urgently needed to preserve liveable conditions, say scientists, as climate damage deepens."
https://www.theguardian.com/environment/2024/jan/09/2023-record-world-hottest-climate-fossil-fuel
#FossilFuels #BusinessAsUsual #heatwaves #floods #Bushfires #MarineHeatwaves
‘Could be the end’: Tasmanian red handfish to be removed from wild amid marine heatwaves fears | Endangered species | The Guardian
https://www.theguardian.com/environment/2023/dec/23/could-be-the-end-tasmanian-red-handfish-to-be-removed-from-wild-amid-marine-heatwaves-fears
#Extinction
#TasmanianRedHandfish
#Fish
#Marine
#MarineHeatwaves
#Heatwave
#RemovedFromTheWild
#WalkingFish
#Australia
#ClimateChange effects hit marine ecosystems in multiple waves, according to marine ecologists https://phys.org/news/2023-11-climate-effects-marine-ecosystems-multiple.html
Smooth and Spiky: The Importance of Variability in Marine Climate Change Ecology https://www.annualreviews.org/doi/10.1146/annurev-ecolsys-022323-082123
"The paper highlights the interplay between the trend of #climate #warming and the fluctuations in local temperature. These two properties cause atypically warm events such as #MarineHeatWaves to occur with increasing frequency and magnitude."
Why are dead and dying seabirds washing up on our beaches in their hundreds?
"Millions of short-tailed shearwaters (Ardenna tenuirostis), commonly known as muttonbirds, return to southern Australia from the Arctic each spring – a round trip of up to 35,000km.Muttonbird wrecks have happened on rare occasions since time immemorial, but are becoming more common.The many ideas about what is causing wrecks range from storms and overfishing to plastic, blue-green algae and irradiated water from Fukushima."
"When muttonbird wrecks occur, the casualties are starving. These birds weigh only half their healthy body weight. The factors leading to this starvation start before they reach Australia."
>>
https://theconversation.com/why-are-dead-and-dying-seabirds-washing-up-on-our-beaches-in-their-hundreds-217349
#birds #seabirds #muttonbirds #wreck #NSW #MarineHeatwaves #migration #starvation #salmon #overfishing
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