#marineheatwave — Public Fediverse posts

Record high ocean temperatures off southern California raise fears of prolonged marine heatwave
https://www.theguardian.com/us-news/2026/apr/04/high-ocean-temperatures-california-marine-heatwave?CMP=Share_AndroidApp_Other

#ClimateCrisis #EcosystemDamage #marineheatwave

Is (Adelaide's) stormwater contributing to the toxic algal bloom?

"... Stormwater "had never been sexy" and, as long as it was flushed away, it did not get the attention nor the government investment it deserved."

"The EPA's Adelaide Coastal Waters Study (ACWS) summary of 2008 stated that nutrient loads had increased 30 to 50 times since European settlement, and recommended steps to reduce wastewater, stormwater and industrial inputs. The study found the loss of seagrass was "mainly due to stormwater flows" "
>>
https://www.abc.net.au/news/2025-11-21/is-adelaides-stormwater-contributing-to-the-toxic-algal-bloom/106025180
#ocean #rivers #pollution #runoff #stormwater #drains #dumping #waste #sprawl #housing #roads #infrastructure #MassMortalityEvents #MarineLife #seagrass #HABs #brevetoxins #MarineHeatwave #FossilFuels #coast #Australia #degradation

#Jellyfish Shut Four French #NuclearReactors as #HeatWave Builds

By Eamon Farhat
August 11, 2025

"#Electricite de France SA [#EDF] was forced to shut four #AtomicReactors after a swarm of jellyfish clogged up filter drums at its #Gravelines power plant.

"The 'massive and unforeseen' [um, not if you read my posts -- very much FORESEEN] presence of jellyfish in the filter drums of pumping stations closed four out of six reactors at Gravelines on the north coast of France, EDF said in a statement on Monday. Pumping stations for coastal #NuclearPlants usually draw in sea water for cooling, sometimes exposing them to marine life.

"A #MarineHeatWave is intensifying off the west coast of France, with unusually warm waters in the English Channel near Gravelines, data from #Copernicus Marine Service show. Jellyfish populations can 'bloom' at such times, and France has closed several beaches in recent weeks due to invasions of the eight-legged molluscs, according reports compiled by the beach information app Meduseo."

Read more:
https://www.bloomberg.com/news/articles/2025-08-11/jellyfish-shut-four-french-nuclear-reactors-as-heat-wave-builds

Archived version:
https://archive.ph/bahil

#EuropeHeatWaves #France #Jellyfish #RethinkNotRestart #NoNukes #NoNukesForAI #NuclearPowerNoThanks #NuclearWasteIsForever #NuclearPowerPlants #ExtremeHeat #RenewablesNow #RenewableEnergy #RethinkNotRestart
#LeNucléaireNonMerci

The world’s longest marine heat wave upended ocean life across the Pacific
#Environment #ClimateChange #Oceans #MarineHeatWave #TheBlob #OceanWarming #EcosystemCollapse #SeaLife #ClimateCrisis #GlobalWarming #Impact #Heatwave #PacificaNorthwest
https://the-14.com/the-worlds-longest-marine-heat-wave-upended-ocean-life-across-the-pacific/

"Climate change is an existential problem of planetary proportions."

"The International Court of Justice (ICJ) has issued a historic advisory opinion that could reshape the global legal landscape for climate action, declaring that States have binding duties under international law to protect the climate system and that a failure to take appropriate measures may constitute an internationally wrongful act."

"The ICJ also addressed the oceans, affirming that anthropogenic GHG emissions qualify as “pollution of the marine environment” under UNCLOS, triggering obligations for States to “take all measures… necessary to prevent, reduce and control pollution.”
>>
https://pasifika.news/2025/07/icj-rules-climate-inaction-breaches-international-law-affirms-states-legal-duties-to-act/
#FossilFuels #CoalAndGas #expansionism #Australia #SA #pollution #MarineHeatwave #Pacific #ocean #MassMortalityEvents #GHG #UN #ICJ #ClimateBreakdown #ClimateCrisis #reparations #restitution #justice #law #ClimateAction

Mass mortality events
Dead marine sea life is washing up on the beaches
Mass bird deaths line the beaches

"There's a lot of concerning things going on with ocean ecology at the moment, so we are watching events like this with a bit of trepidation."
https://www.abc.net.au/news/2025-07-22/avian-influenza-not-the-cause-of-coral-bay-bird-deaths/105546660

Beaches are littered with fish and marine carcasses
https://www.theguardian.com/australia-news/2025/jul/20/sas-toxic-algal-bloom-is-twice-the-size-of-the-act-has-killed-12000-animals-and-is-filling-even-the-experts-with-dread

“Ocean temperatures are heating up. It’s creating conditions that are conducive to algal blooms all around the world."
https://www.theguardian.com/environment/2025/jun/15/deadly-algal-bloom-in-south-australias-coorong-an-environmental-eye-opener-ecologist-says
#FossilFuels #Climate #ClimateBreakdown #MarineHeatwave #AMOC #HABs #pollution #runoff #hypoxia #toxins #marine #biodiversity #FishKill #MassMortalityEvents #MME #Biodiversity #birds #DeadZones #ocean #ecology #Australia #PlanetaryBoundaries

Ocean temperatures are heating up
The marine environment is turning into a dead zone
Fossil fuel projects are still fast tracked

“Ocean temperatures are heating up. It’s creating conditions that are conducive to algal blooms all around the world."
https://www.theguardian.com/environment/2025/jun/15/deadly-algal-bloom-in-south-australias-coorong-an-environmental-eye-opener-ecologist-says

"This bloom represents a stark warning to coastal communities, as well as tourism, seafood and aquaculture industries. It’s a sign of what’s to come, in Australia and around the world, as the oceans warm."
https://theconversation.com/like-an-underwater-bushfire-sas-marine-algal-bloom-is-still-killing-almost-everything-in-its-path-257885

An "ecological and economic disaster. A lot of businesses are going to go down with this...We've got commercial fishermen, aquaculture businesses, tourism businesses that are literally on their knees."
https://www.abc.net.au/news/2025-07-13/algal-bloom-royal-commission-call-amid-mussel-farm-impact/105525088
#ocean #FossilFuels #MarineHeatwave #AMOC #HABs #pollution #runoff #hypoxia #toxins #marine #biodiversity #FishKill #Australia #PrimaryIndustries #beach #health #risks #tourism #ClimateBreakdown

Smelly brown foamy sludge at Sawtell, NSW

Massive #coralbleaching along Australia’s north west coast due to #MarineHeatwave. This is what 1.5C of warming looks like. It will get worse. Meanwhile, last week Woodside’s #NorthwestShelf carbon bomb approved by Labor’s Murray Watt. #ClimateCrisis #Ningaloo #ScottReef
https://www.theguardian.com/environment/2025/jun/07/wa-coral-unprecedented-bleaching-event-ningaloo-reef

Entire marine ecosystems are collapsing under the pressure of extreme heat. The Pacific may be a preview of what's coming. #ClimateCrisis #MarineHeatwave #EnvironmentalDisaster

https://geekoo.news/pacific-on-fire-the-ocean-heatwave-no-one-saw-coming/

Raising Hungry #SeaStar Babies Is No Cinch https://baynature.org/article/raising-hungry-sea-star-babies-is-no-cinch/

"Not so long ago, you could count on #pycnopodia to devour #PurpleUrchins and keep them from eating too much #kelp. A decade ago, the mysterious wasting disease began plaguing #SeaStars, right around the time that a #MarineHeatWave struck... In the absence of their primary predator, urchin populations exploded. Since then they have mown across the sea floor unhindered, leaving urchin barrens where #KelpForests once flourished."

South-East Australia Marine Heatwave Forecast To Be Literally Off The Scale
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https://www.theguardian.com/australia-news/2023/aug/27/south-east-australia-marine-heatwave-forecast-to-be-literally-off-the-scale <-- shared media article
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#GIS #spatial #mapping #spatialanalysis #spatiotemporal #climatechange #marine #marineconservation #marinelife #heatwave #Australia #Tasmania #MarineHeatwave #fishing #fisheries #fisheriesmanagement #economics #economy #foodsecurity #watertemperature #waterquality #abalone #paua #salmon #oyster #ecosystem #health #ecosystemchange #disease

‘Unheard of’ #MarineHeatwave off #UK and #Irish coasts poses serious threat -

Sustained high temperatures over summer could trigger #MassMortality of #fish and #oysters, say scientists
https://www.theguardian.com/environment/2023/jun/19/marine-heatwave-uk-irish-coasts-threat-oysters-fish-high-temperatures #ClimateCrisis #Sustainabity #Environment #Wildlife

Scientists identify heat wave at bottom of ocean

The research team, from #NOAA, #CIRES, and #NCAR, found that on the continental shelves around North America, bottom #MarineHeatWave|s tend to persist longer than their surface counterparts, and can have larger warming signals than the overlying surface waters. Bottom and surface marine heat waves can occur simultaneously in the same location, especially in shallower regions where surface and bottom waters mingle.
https://phys.org/news/2023-03-scientists-bottom-ocean.html